$119+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SAT
Oct 7 — Oct 141
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 October or January, booked 86 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 September 7, 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 September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/207:05 pm -
1 stop15h 03m
Fri 10/2310:03 am -
1 stop21h 17m
Deal found 9/3![Frontier logo]()
$226
This Orbitz deal was found by Cheapflights users on 9/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:52 pm -
1 stop12h 26m
Mon 11/910:13 am -
1 stop26h 55m
Deal found 9/2![Frontier logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Thu 10/159:52 pm -
1 stop12h 16m
Mon 10/1910:03 am -
1 stop21h 17m
Deal found 9/4![Frontier logo]()
$248
This Orbitz deal was found by Cheapflights users on 9/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:40 am -
1 stop15h 32m
Mon 12/79:07 pm -
1 stop26h 48m
Deal found 9/2![Frontier logo]()
$249
This Frontier deal was found by Cheapflights users on 9/4. 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.
Thu 10/159:52 pm -
1 stop12h 16m
Wed 10/2110:03 am -
1 stop7h 17m
Deal found 9/4![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 9/6. 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.
Thu 10/13:04 pm -
1 stop19h 06m
Wed 10/710:03 am -
1 stop21h 17m
Deal found 9/6![Frontier logo]()
$261
This Frontier deal was found by Cheapflights users on 9/2. 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.
Thu 9/249:32 pm -
1 stop12h 38m
Wed 9/3010:03 am -
1 stop21h 28m
Deal found 9/2![Frontier logo]()
$265
This CheapOair deal was found by Cheapflights users on 9/6. 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 9/279:32 pm -
1 stop12h 38m
Wed 9/3010:03 am -
1 stop21h 28m
Deal found 9/6![Frontier logo]()
$270
This CheapOair deal was found by Cheapflights users on 9/2. 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.
Thu 9/173:04 pm -
1 stop19h 06m
Wed 9/2310:03 am -
1 stop21h 28m
Deal found 9/2![Frontier logo]()
$279
This CheapOair deal was found by Cheapflights users on 9/6. 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.
Thu 10/111:12 am -
1 stop22h 58m
Sat 10/32:47 pm -
1 stop14h 33m
Deal found 9/6![Frontier logo]()
$308
This Super.com deal was found by Cheapflights users on 9/6. 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 10/221:00 pm -
1 stop7h 26m
Sun 10/258:21 pm -
1 stop24h 38m
Deal found 9/6![Frontier logo]()
$309
This Delta deal was found by Cheapflights users on 9/3. 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.
Mon 11/910:11 am -
1 stop8h 14m
Mon 11/165:30 am -
1 stop5h 07m
Deal found 9/3![Delta logo]()
$309
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 September 7, 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 September 7, 2026.
This Delta deal was found by Cheapflights users on 9/3. 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 11/196:10 am -
1 stop5h 40m
Mon 11/232:33 pm -
1 stop6h 27m
Deal found 9/3![Delta logo]()
$324
This Southwest deal was found by Cheapflights users on 9/2. 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 9/246:55 pm -
Nonstop3h 40m
Wed 9/306:30 am -
Nonstop3h 20m
Deal found 9/2![Southwest logo]()
$343
This United Airlines deal was found by Cheapflights users on 9/6. 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 12/45:40 pm -
1 stop6h 12m
Sun 12/67:00 am -
Nonstop3h 10m
Deal found 9/6![United Airlines logo]()
$369
This Southwest deal was found by Cheapflights users on 9/3. 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 10/216:30 pm -
Nonstop3h 45m
Fri 10/234:55 pm -
Nonstop3h 20m
Deal found 9/3![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 9/5. 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 10/16:10 am -
1 stop5h 29m
Sun 10/44:21 pm -
1 stop7h 20m
Deal found 9/5![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/4. 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 12/32:24 pm -
1 stop5h 51m
Sun 12/67:00 am -
Nonstop3h 10m
Deal found 9/4![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 9/6. 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 10/217:20 pm -
1 stop5h 00m
Fri 10/234:45 pm -
1 stop5h 10m
Deal found 9/6![Southwest logo]()
$354
This Delta deal was found by Cheapflights users on 9/4. 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 10/175:08 pm -
1 stop6h 12m
Wed 10/216:20 pm -
1 stop5h 22m
Deal found 9/4![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/68:25 am -
Nonstop3h 53m
Sun 11/87:00 am -
Nonstop3h 13m
Deal found 9/3![United Airlines logo]()
$386
This Southwest deal was found by Cheapflights users on 9/6. 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.
Tue 9/296:50 pm -
1 stop5h 10m
Sat 10/35:00 am -
1 stop8h 00m
Deal found 9/6![Southwest logo]()
$354
This Delta deal was found by Cheapflights users on 9/6. 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 11/193:00 pm -
1 stop5h 48m
Thu 11/2611:00 am -
1 stop5h 40m
Deal found 9/6![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/3. 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 12/48:15 am -
Nonstop3h 51m
Mon 12/77:00 am -
Nonstop3h 10m
Deal found 9/3![United Airlines logo]()
$394
This Southwest deal was found by Cheapflights users on 9/4. 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.
Tue 12/111:40 am -
1 stop5h 15m
Fri 12/45:50 am -
2 stops8h 15m
Deal found 9/4![Southwest logo]()
$360
This Southwest deal was found by Cheapflights users on 9/6. 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 10/223:40 pm -
1 stop5h 25m
Sat 10/246:25 am -
2 stops8h 30m
Deal found 9/6![Southwest logo]()
$360
This Southwest deal was found by Cheapflights users on 9/5. 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.
Mon 11/94:05 pm -
2 stops8h 20m
Mon 11/164:30 pm -
1 stop5h 25m
Deal found 9/5![Southwest logo]()
$360
This Delta deal was found by Cheapflights users on 9/6. 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 10/227:40 pm -
1 stop5h 53m
Sat 10/246:50 am -
1 stop5h 16m
Deal found 9/6![Delta logo]()
$443
This United Airlines deal was found by Cheapflights users on 9/6. 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 12/28:15 am -
Nonstop3h 51m
Tue 12/811:48 am -
1 stop5h 35m
Deal found 9/6![United Airlines logo]()
$455
This Southwest deal was found by Cheapflights users on 9/6. 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.
Tue 10/209:10 am -
2 stops9h 15m
Fri 10/234:45 pm -
1 stop5h 10m
Deal found 9/6![Southwest logo]()
$364
This Delta deal was found by Cheapflights users on 9/6. 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 10/227:40 pm -
1 stop5h 53m
Mon 10/266:20 pm -
1 stop5h 31m
Deal found 9/6![Delta logo]()
$443
This United Airlines deal was found by Cheapflights users on 9/6. 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 11/198:25 am -
Nonstop3h 53m
Thu 11/2611:45 am -
1 stop5h 35m
Deal found 9/6![United Airlines logo]()
$455
This Southwest deal was found by Cheapflights users on 9/2. 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 12/46:15 am -
1 stop6h 00m
Mon 12/79:50 am -
2 stops6h 25m
Deal found 9/2![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Sun 11/225:30 pm -
Nonstop3h 54m
Fri 11/272:20 pm -
1 stop7h 24m
Deal found 9/6![United Airlines logo]()
$459
This Southwest deal was found by Cheapflights users on 9/4. 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 11/17:00 am -
1 stop8h 55m
Sun 11/14:55 pm -
1 stop4h 55m
Deal found 9/4![Southwest logo]()
$384
This Southwest deal was found by Cheapflights users on 9/5. 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 10/2412:35 pm -
2 stops9h 05m
Sun 10/256:15 am -
1 stop5h 05m
Deal found 9/5![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 9/3. 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 11/64:05 pm -
2 stops8h 20m
Sun 11/87:20 am -
2 stops6h 40m
Deal found 9/3![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 9/4. 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 12/256:25 pm -
Nonstop3h 55m
Wed 12/305:05 am -
Nonstop3h 15m
Deal found 9/4![Southwest logo]()
$435
This Southwest deal was found by Cheapflights users on 9/6. 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 10/226:10 pm -
1 stop6h 45m
Mon 10/265:00 pm -
2 stops6h 50m
Deal found 9/6![Southwest logo]()
$448
This Southwest deal was found by Cheapflights users on 9/6. 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.
Tue 12/227:20 am -
1 stop5h 15m
Wed 12/307:45 am -
2 stops6h 15m
Deal found 9/6![Southwest logo]()
$448
This Southwest deal was found by Cheapflights users on 9/2. 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 11/196:40 pm -
1 stop5h 25m
Sun 11/227:00 am -
2 stops7h 05m
Deal found 9/2![Southwest logo]()
$453
This Southwest deal was found by Cheapflights users on 9/2. 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 11/206:10 pm -
1 stop5h 05m
Tue 11/245:10 pm -
1 stop6h 45m
Deal found 9/2![Southwest logo]()
$464
Last-minute flights from Washington, D.C. to San AntonioDiscover last-minute flight deals from Washington, D.C. to San Antonio. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Washington, D.C. to San Antonio. Data last updated September 7, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/2. 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.
Wed 9/161:00 pm -
1 stop7h 25m
Sat 9/198:20 pm -
1 stop14h 51m
Deal found 9/2![Frontier logo]()
$310
This CheapOair deal was found by Cheapflights users on 9/2. 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.
Thu 9/173:04 pm -
1 stop19h 06m
Wed 9/2310:03 am -
1 stop21h 28m
Deal found 9/2![Frontier logo]()
$279
This Frontier deal was found by Cheapflights users on 9/2. 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.
Thu 9/249:32 pm -
1 stop12h 38m
Wed 9/3010:03 am -
1 stop21h 28m
Deal found 9/2![Frontier logo]()
$265
This CheapOair deal was found by Cheapflights users on 9/6. 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 9/279:32 pm -
1 stop12h 38m
Wed 9/3010:03 am -
1 stop21h 28m
Deal found 9/6![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 9/6. 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.
Thu 10/13:04 pm -
1 stop19h 06m
Wed 10/710:03 am -
1 stop21h 17m
Deal found 9/6![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 9/6. 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.
Thu 10/111:12 am -
1 stop22h 58m
Sat 10/32:47 pm -
1 stop14h 33m
Deal found 9/6![Frontier logo]()
$308
This CheapOair deal was found by Cheapflights users on 9/3. 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.
Thu 10/111:12 am -
1 stop22h 58m
Sun 10/412:39 pm -
1 stop16h 41m
Deal found 9/3![Frontier logo]()
$310
This CheapOair deal was found by Cheapflights users on 9/6. 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.
Thu 10/89:59 pm -
1 stop12h 09m
Mon 10/1210:03 am -
1 stop21h 17m
Deal found 9/6![Frontier logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Thu 10/159:52 pm -
1 stop12h 16m
Mon 10/1910:03 am -
1 stop21h 17m
Deal found 9/4![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 9/4. 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.
Thu 10/159:52 pm -
1 stop12h 16m
Wed 10/2110:03 am -
1 stop7h 17m
Deal found 9/4![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/207:05 pm -
1 stop15h 03m
Fri 10/2310:03 am -
1 stop21h 17m
Deal found 9/3![Frontier logo]()
$226
This Super.com deal was found by Cheapflights users on 9/6. 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 10/221:00 pm -
1 stop7h 26m
Sun 10/258:21 pm -
1 stop24h 38m
Deal found 9/6![Frontier logo]()
$309
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 September 7, 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 September 7, 2026.
This Priceline deal was found by Cheapflights users on 9/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:40 pm -
1 stop8h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$119
This Frontier deal was found by Cheapflights users on 9/2. 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.
Thu 10/19:32 pm -
1 stop12h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 9/7. 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.
Mon 12/712:40 pm -
1 stop8h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$130
This Super.com deal was found by Cheapflights users on 9/4. 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 10/299:52 pm -
1 stop12h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/2010:22 am -
2 stops23h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 9/2. 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.
Sun 10/49:32 pm -
1 stop12h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$136
This CheapOair deal was found by Cheapflights users on 9/7. 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 12/67:29 pm -
1 stop25h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$141
This Frontier deal was found by Cheapflights users on 9/2. 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 12/412:40 pm -
1 stop8h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$145
This Booking.com deal was found by Cheapflights users on 9/2. 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 10/89:59 pm -
1 stop12h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$151
This Frontier deal was found by Cheapflights users on 9/5. 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.
Thu 11/59:52 pm -
1 stop12h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$155
This Booking.com deal was found by Cheapflights users on 9/2. 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 9/179:32 pm -
1 stop12h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$156
This CheapOair deal was found by Cheapflights users on 9/5. 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 9/276:00 am -
1 stop30h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$164
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $226 (Kiwi.com) |
One-way from | $119 (Priceline) |
Popular in | June |
Cheapest in | October |
Average price | $393 |
Good round-trip deal | $319 or less |
Good one-way deal | $193 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 September 7, 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
Sat 10/3
7:05 am-12:49 pm
1 stop6h 44m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
Washington, D.C.San Antonio
DCA Washington, D.C. Reagan-National - SAT San Antonio
DCASAT
Washington, D.C. Reagan-National
Mon 12/7
2:10 pm-8:35 pm
2 stops7h 25m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$174
Washington, D.C.San Antonio
DCA Washington, D.C. Reagan-National - SAT San Antonio
DCASAT
Washington, D.C. Reagan-National
Tue 12/8
11:40 am-3:55 pm
1 stop5h 15m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$175
Washington, D.C.San Antonio
DCA Washington, D.C. Reagan-National - SAT San Antonio
DCASAT
Washington, D.C. Reagan-National
Thu 12/3
12:05 pm-4:20 pm
1 stop5h 15m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$175
Washington, D.C.San Antonio
DCA Washington, D.C. Reagan-National - SAT San Antonio
DCASAT
Washington, D.C. Reagan-National
Fri 9/25
3:30 pm-11:00 pm
1 stop8h 30m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$175
Washington, D.C.San Antonio
IAD Washington, D.C. Dulles Intl - SAT San Antonio
IADSAT
Washington, D.C. Dulles Intl
Fri 9/18
6:00 am-9:03 pm
1 stop16h 03m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$176
Washington, D.C.San Antonio
IAD Washington, D.C. Dulles Intl - SAT San Antonio
IADSAT
Washington, D.C. Dulles Intl
Tue 10/27
5:30 pm-8:24 pm
Nonstop3h 54m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$180
Washington, D.C.San Antonio
DCA Washington, D.C. Reagan-National - SAT San Antonio
DCASAT
Washington, D.C. Reagan-National
Fri 10/23
3:35 pm-11:40 pm
2 stops9h 05m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$180
Quickest round-trip
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Fri 9/25
3:45 pm-6:10 pm
Nonstop3h 25m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$185
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Mon 3/1
9:10 am-12:05 pm
Nonstop3h 55m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$185
Showing 1-10 of 60 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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
IAD-SAT
DCA-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
IAD-SAT
DCA-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 $343). Flying from Washington, D.C. to San Antonio in May is currently the most expensive (average of $451). 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 September 7, 2026.
It’s typically best to fly out from Washington, D.C. to San Antonio in the morning. Doing so could potentially save you 5% on the flight price compared to flying at noon, 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 September 7, 2026.
The most flights from WAS to SAT are scheduled on a Monday (9 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 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 $319 and $473 in October.The cheapest round-trip price found within the last 5 days was $226 on Frontier (Oct 20-Oct 23).
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.
Dallas (DAL) – 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.
Dallas (DAL) is the most affordable 1-stop option, with an average round-trip price of $395.
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 September 5, 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. Tuesday 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 September 7, 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.
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
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 September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$132 | Average$307 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$246 | Average$405 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$417 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$249 | Average$413 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$264 | Average$468 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$381 | Average$455 | FlexibilityNo cancel fee | On-time62% |