$120+ Cheap flights from Washington, D.C. (WAS) to San Antonio (SAT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SAT
Nov 18 — Nov 251
Round-trip
1 adult, Economy
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Find cheap flights from Washington, D.C. to San Antonio with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Washington, D.C. to San Antonio are usually found in January or February, booked 73 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from Washington, D.C. to San Antonio
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Cheapest flights from Washington, D.C. to San AntonioExplore the most affordable flight options available from Washington, D.C. to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
Explore the most affordable flight options available from Washington, D.C. to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
This Frontier deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:27 am -
1 stop7h 15m
Mon 12/71:32 pm -
1 stop9h 57m
Deal found 10/14![Frontier logo]()
$228
This Cheapflightsfares deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:27 am -
1 stop7h 15m
Wed 12/912:32 pm -
1 stop19h 49m
Deal found 10/18![Frontier logo]()
$258
This Cheapflightsfares deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:27 am -
1 stop7h 15m
Mon 12/712:32 pm -
1 stop19h 49m
Deal found 10/15![Frontier logo]()
$260
This Cheapflightsfares deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:51 pm -
1 stop18h 51m
Fri 12/41:14 pm -
1 stop18h 12m
Deal found 10/18![Frontier logo]()
$268
This Cheapflightsfares deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:12 am -
1 stop8h 06m
Mon 11/165:13 pm -
1 stop23h 59m
Deal found 10/15![Frontier logo]()
$270
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/307:00 am -
Nonstop4h 05m
Mon 1/45:20 pm -
Nonstop3h 10m
Deal found 10/14![Southwest logo]()
$277
This Cheapflightsfares deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:11 pm -
1 stop26h 07m
Mon 11/165:13 pm -
1 stop19h 55m
Deal found 10/17![Frontier logo]()
$278
This Cheapflightsfares deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/299:41 pm -
1 stop23h 31m
Mon 1/49:07 pm -
1 stop26h 37m
Deal found 10/14![Frontier logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:43 pm -
2 stops15h 02m
Mon 12/71:32 pm -
1 stop18h 49m
Deal found 10/15![Multiple Airlines logo]()
$285
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:00 pm -
Nonstop3h 55m
Wed 11/114:35 pm -
1 stop5h 15m
Deal found 10/14![Southwest logo]()
$287
This Trip.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:00 pm -
1 stop7h 25m
Sun 11/88:20 pm -
1 stop14h 49m
Deal found 10/15![Frontier logo]()
$289
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:32 pm -
1 stop5h 53m
Mon 11/164:32 pm -
1 stop7h 09m
Deal found 10/14![Delta logo]()
$289
Best flights from Washington, D.C. to San AntonioDiscover carefully curated flight deals from Washington, D.C. to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
Discover carefully curated flight deals from Washington, D.C. to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/307:00 am -
Nonstop4h 05m
Mon 1/42:20 pm -
1 stop4h 35m
Deal found 10/14![Southwest logo]()
$283
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/57:50 pm -
1 stop5h 38m
Fri 2/124:00 pm -
1 stop6h 02m
Deal found 10/14![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/155:55 pm -
Nonstop4h 02m
Mon 1/1811:50 am -
1 stop8h 01m
Deal found 10/18![United Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/244:45 pm -
1 stop6h 55m
Thu 12/315:30 am -
Nonstop3h 05m
Deal found 10/14![Southwest logo]()
$287
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/168:25 am -
Nonstop4h 00m
Mon 1/185:30 am -
Nonstop3h 05m
Deal found 10/18![Southwest logo]()
$311
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/158:37 am -
1 stop7h 27m
Tue 1/1912:20 pm -
Nonstop3h 10m
Deal found 10/18![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:40 pm -
1 stop5h 53m
Fri 11/275:30 am -
1 stop5h 01m
Deal found 10/17![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/265:15 pm -
Nonstop4h 00m
Sun 2/286:43 am -
1 stop5h 31m
Deal found 10/18![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/47:00 am -
1 stop7h 22m
Sun 3/71:00 pm -
1 stop9h 04m
Deal found 10/16![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/256:40 am -
1 stop6h 35m
Fri 12/252:45 pm -
Nonstop3h 10m
Deal found 10/15![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:15 am -
1 stop6h 12m
Thu 11/265:30 am -
1 stop5h 01m
Deal found 10/16![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/51:01 pm -
2 stops10h 58m
Fri 2/122:15 pm -
1 stop6h 57m
Deal found 10/14![United Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/269:05 am -
1 stop6h 05m
Sun 2/2811:40 am -
2 stops7h 05m
Deal found 10/18![Southwest logo]()
$399
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/103:00 pm -
1 stop7h 32m
Mon 2/152:00 pm -
1 stop8h 33m
Deal found 10/18![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:30 pm -
Nonstop3h 54m
Sat 11/712:24 pm -
Nonstop3h 11m
Deal found 10/16![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/134:05 pm -
2 stops8h 25m
Sun 11/225:25 am -
1 stop7h 35m
Deal found 10/15![Southwest logo]()
$399
This Delta deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:16 pm -
1 stop6h 38m
Sun 11/296:30 pm -
1 stop5h 11m
Deal found 10/15![Delta logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/35:55 pm -
Nonstop3h 54m
Sun 12/67:00 am -
Nonstop3h 13m
Deal found 10/14![United Airlines logo]()
$434
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/108:15 am -
Nonstop4h 00m
Sun 12/132:50 pm -
1 stop5h 10m
Deal found 10/18![Southwest logo]()
$407
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/207:45 am -
1 stop6h 49m
Tue 12/294:50 pm -
1 stop5h 39m
Deal found 10/18![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:30 pm -
Nonstop3h 54m
Tue 11/37:00 am -
Nonstop3h 13m
Deal found 10/14![United Airlines logo]()
$439
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:35 am -
1 stop7h 40m
Thu 1/75:45 am -
Nonstop3h 05m
Deal found 10/18![Southwest logo]()
$407
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:13 am -
1 stop8h 11m
Tue 11/36:50 am -
1 stop6h 19m
Deal found 10/16![Delta logo]()
$459
This Southwest deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:50 am -
Nonstop3h 50m
Wed 11/115:30 am -
Nonstop3h 05m
Deal found 10/16![Southwest logo]()
$430
This Delta deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/313:03 pm -
1 stop5h 45m
Wed 11/45:15 am -
1 stop5h 19m
Deal found 10/15![Delta logo]()
$459
This Southwest deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:00 pm -
Nonstop3h 55m
Sun 11/155:15 am -
Nonstop3h 10m
Deal found 10/16![Southwest logo]()
$430
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/158:15 am -
2 stops8h 50m
Mon 1/183:55 pm -
1 stop5h 55m
Deal found 10/18![Southwest logo]()
$433
This Southwest deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:10 pm -
2 stops7h 25m
Tue 12/296:00 am -
1 stop5h 00m
Deal found 10/17![Southwest logo]()
$434
This Southwest deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:55 pm -
2 stops9h 20m
Wed 11/115:50 am -
2 stops8h 15m
Deal found 10/16![Southwest logo]()
$439
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/188:30 pm -
Nonstop3h 45m
Sun 1/35:35 pm -
Nonstop3h 10m
Deal found 10/14![Southwest logo]()
$442
Last-minute flights from Washington, D.C. to San AntonioDiscover last-minute flight deals from Washington, D.C. to San Antonio. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Washington, D.C. to San Antonio. Data last updated October 19, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/11:00 pm -
1 stop7h 25m
Thu 11/58:20 pm -
1 stop24h 30m
Deal found 10/14![Frontier logo]()
$291
This CheapOair deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:00 am -
1 stop13h 25m
Wed 11/118:20 pm -
1 stop24h 30m
Deal found 10/16![Frontier logo]()
$290
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:30 pm -
1 stop5h 56m
Sat 11/711:45 am -
2 stops8h 57m
Deal found 10/14![United Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:00 pm -
Nonstop3h 55m
Wed 11/115:30 am -
Nonstop3h 05m
Deal found 10/14![Southwest logo]()
$277
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:30 pm -
1 stop5h 56m
Sat 11/74:19 pm -
1 stop5h 25m
Deal found 10/14![United Airlines logo]()
$287
This Trip.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:00 pm -
1 stop7h 25m
Sun 11/88:20 pm -
1 stop14h 49m
Deal found 10/15![Frontier logo]()
$289
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:55 pm -
1 stop6h 15m
Wed 11/115:50 am -
2 stops8h 15m
Deal found 10/14![Southwest logo]()
$294
This Super.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:00 pm -
1 stop7h 25m
Wed 11/118:20 pm -
1 stop19h 27m
Deal found 10/17![Frontier logo]()
$295
This Cheapflightsfares deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:11 pm -
1 stop26h 07m
Mon 11/165:13 pm -
1 stop19h 55m
Deal found 10/17![Frontier logo]()
$278
This Cheapflightsfares deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:12 am -
1 stop8h 06m
Mon 11/165:13 pm -
1 stop23h 59m
Deal found 10/15![Frontier logo]()
$270
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:32 pm -
1 stop5h 53m
Mon 11/164:32 pm -
1 stop7h 09m
Deal found 10/14![Delta logo]()
$289
This Trip.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:00 pm -
1 stop7h 25m
Wed 11/188:20 pm -
1 stop14h 49m
Deal found 10/15![Frontier logo]()
$292
One-way flights from Washington, D.C. to San AntonioSearch for one-way flight options from Washington, D.C. to San Antonio. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
Search for one-way flight options from Washington, D.C. to San Antonio. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This Booking.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:11 pm -
1 stop26h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$120
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/188:30 pm -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Southwest logo]()
$139
This CheapOair deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:51 pm -
1 stop18h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Frontier logo]()
$141
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/174:51 pm -
1 stop8h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Delta logo]()
$144
This Super.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:00 am -
1 stop13h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$144
This Cheapflightsfares deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1410:16 pm -
1 stop13h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$144
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/167:40 pm -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Delta logo]()
$145
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:05 am -
1 stop8h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Delta logo]()
$145
This Travelocity deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:52 pm -
1 stop19h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$146
This Travelocity deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:00 am -
1 stop13h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Frontier logo]()
$146
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/109:23 pm -
1 stop15h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:09 pm -
1 stop9h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$147
Find flight deals from Washington, D.C. to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $228 (Frontier) |
One-way from | $120 (Booking.com) |
Popular in | June |
Cheapest in | January |
Average price | $413 |
Good round-trip deal | $359 or less |
Good one-way deal | $183 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 19, 2026.
Use the filters below to find and compare flights from Washington, D.C. to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Thu 12/17
8:15 am-11:15 am
Nonstop4h 00m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$139
Washington, D.C.San Antonio
DCA Washington, D.C. Reagan-National - SAT San Antonio
DCASAT
Washington, D.C. Reagan-National
Thu 1/14
9:00 am-1:22 pm
1 stop5h 22m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$145
Washington, D.C.San Antonio
IAD Washington, D.C. Dulles Intl - SAT San Antonio
IADSAT
Washington, D.C. Dulles Intl
Sat 11/14
10:00 am-4:55 pm
1 stop7h 55m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$145
Washington, D.C.San Antonio
IAD Washington, D.C. Dulles Intl - SAT San Antonio
IADSAT
Washington, D.C. Dulles Intl
Sat 2/13
1:00 pm-5:39 pm
1 stop5h 39m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$145
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Thu 12/17
6:00 am-3:37 pm
2 stops10h 37m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$149
Washington, D.C.San Antonio
DCA Washington, D.C. Reagan-National - SAT San Antonio
DCASAT
Washington, D.C. Reagan-National
Thu 12/3
2:10 pm-8:40 pm
2 stops7h 30m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$150
Washington, D.C.San Antonio
DCA Washington, D.C. Reagan-National - SAT San Antonio
DCASAT
Washington, D.C. Reagan-National
Thu 12/17
4:05 pm-11:30 pm
2 stops8h 25m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$153
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Wed 11/11
6:25 pm-9:25 pm
Nonstop4h 00m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$194
Washington, D.C.San Antonio
IAD Washington, D.C. Dulles Intl - SAT San Antonio
IADSAT
Washington, D.C. Dulles Intl
Mon 1/4
1:00 pm-5:18 pm
1 stop5h 18m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$195
Quickest round-trip
Washington, D.C.San Antonio
IAD Washington, D.C. Dulles Intl - SAT San Antonio
IADSAT
Washington, D.C. Dulles Intl
Thu 11/12
8:25 am-11:18 am
Nonstop3h 53m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$195
Showing 1-10 of 58 resultsSorted by cheapest first
Compare providers for flights from Washington, D.C. to San Antonio
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to San Antonio in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C.-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C.-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Washington, D.C. to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Washington, D.C. with our price prediction graph.
WAS-SAT
BWI-SAT
DCA-SAT
IAD-SAT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. to San Antonio
WAS-SAT
BWI-SAT
DCA-SAT
IAD-SAT
What is the cheapest month to book a flight from Washington, D.C. to San Antonio?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to San Antonio (average of $336). Flying from Washington, D.C. to San Antonio in May is currently the most expensive (average of $450). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from WAS to SAT?
Find hourly flight availability from Washington, D.C. to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 19, 2026.
It’s typically best to fly out from Washington, D.C. to San Antonio in the morning. Doing so could potentially save you 13% on the flight price compared to flying in the evening, which is usually more expensive.
Weekly flight availability from Washington, D.C. to San Antonio
Explore weekly flight availability from Washington, D.C. to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 19, 2026.
The most flights from WAS to SAT are scheduled on a Thursday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Washington, D.C. to San Antonio?
Airfare is below average for this route at the moment.
Washington, D.C. to San Antonio flights typically cost between $342 and $502 in December.The cheapest round-trip price found within the last 5 days was $228 on Frontier (Dec 4-Dec 7).
What’s the top layover airport for flights from Washington, D.C. to San Antonio?
Share of 1-stop round-trip flights from Washington, D.C. to San Antonio chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 50% of 1-stop itineraries from Washington, D.C. to San Antonio on Cheapflights.
What’s the cheapest layover airport for flights from Washington, D.C. to San Antonio?
Average round-trip fare for 1-stop flights from Washington, D.C. to San Antonio, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $228.
What’s the fastest layover option from Washington, D.C. to San Antonio?
Shortest average travel time for 1-stop one-way flights from Washington, D.C. to San Antonio, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Dallas (DAL) have the shortest average one-way travel time for 1-stop routes: 5h 33m.
Which airport typically offers the quickest layover for flights from Washington, D.C. to San Antonio?
Average layover duration for 1-stop one-way flights from Washington, D.C. to San Antonio, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Dallas (DAL) offer the fastest connection on this route, with an average layover time of 0h 48m.
How far ahead should I book a flight from Washington, D.C. to San Antonio?
The price you pay for your flight from Washington, D.C. to San Antonio may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Washington, D.C. to San Antonio?
Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to San Antonio. Price data was last updated on October 17, 2026.
Travelers seeking maximum savings on their Washington, D.C. to San Antonio flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Washington, D.C. to San Antonio flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to San Antonio trip
Our travel experts
Reviews of airlines servicing San Antonio
Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated October 19, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Washington, D.C. to San Antonio. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Related info for your journey
Find useful and relevant information for your journey from Washington, D.C. to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Washington, D.C. and San Antonio flights
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Top 6 airlines flying from Washington, D.C. to San Antonio
Discover the top 6 airlines that operate flights from Washington, D.C. to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$160 | Average$304 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$246 | Average$394 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$428 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$249 | Average$433 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$279 | Average$463 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$381 | Average$434 | FlexibilityNo cancel fee | On-time62% |