$126+ Cheap flights from Baltimore to San Antonio (BWI - SAT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SAT
Jul 25 — Aug 11
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Baltimore 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 Baltimore/Washington to San Antonio are usually found in August or September, booked 30 days in advance, depart on a Thursday or Wednesday and return on a Thursday
Cheap flight deals from Baltimore to San Antonio
Cheapest
Best
Last-minute
One-way
Cheapest flights from Baltimore to San AntonioExplore the most affordable flight options available from Baltimore to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.
Explore the most affordable flight options available from Baltimore to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.
This Expedia deal was found by Cheapflights users on 6/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:21 pm
BWI
- SAT
1 stop18h 35m
Frontier
Mon 8/109:51 am
SAT
- BWI
1 stop13h 32m
Frontier
Deal found 6/22![Frontier logo]()
$240
This Frontier deal was found by Cheapflights users on 6/24. 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 7/239:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Sat 7/254:26 pm
SAT
- BWI
1 stop6h 57m
Frontier
Deal found 6/24![Frontier logo]()
$245
This Expedia deal was found by Cheapflights users on 6/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/103:21 pm
BWI
- SAT
1 stop25h 20m
Frontier
Sat 7/184:26 pm
SAT
- BWI
1 stop6h 57m
Frontier
Deal found 6/22![Frontier logo]()
$247
This Expedia deal was found by Cheapflights users on 6/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:38 pm
BWI
- SAT
1 stop19h 03m
Frontier
Mon 7/139:51 am
SAT
- BWI
1 stop13h 32m
Frontier
Deal found 6/21![Frontier logo]()
$250
This Frontier deal was found by Cheapflights users on 6/25. 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 8/139:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Mon 8/179:51 am
SAT
- BWI
1 stop13h 08m
Frontier
Deal found 6/25![Frontier logo]()
$254
This Frontier deal was found by Cheapflights users on 6/22. 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 7/99:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Sat 7/184:26 pm
SAT
- BWI
1 stop6h 57m
Frontier
Deal found 6/22![Frontier logo]()
$257
This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:38 pm
BWI
- SAT
1 stop19h 03m
Frontier
Mon 8/179:51 am
SAT
- BWI
1 stop9h 52m
Frontier
Deal found 6/24![Frontier logo]()
$259
This Expedia deal was found by Cheapflights users on 6/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:25 am
BWI
- SAT
1 stop10h 16m
Frontier
Sat 7/184:26 pm
SAT
- BWI
1 stop15h 28m
Frontier
Deal found 6/25![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 6/24. 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 9/179:52 pm
BWI
- SAT
1 stop12h 10m
Frontier
Mon 9/219:57 am
SAT
- BWI
1 stop7h 35m
Frontier
Deal found 6/24![Frontier logo]()
$268
This Frontier deal was found by Cheapflights users on 6/22. 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 7/99:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Fri 7/179:51 am
SAT
- BWI
1 stop9h 52m
Frontier
Deal found 6/22![Frontier logo]()
$270
This Booking.com deal was found by Cheapflights users on 6/23. 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.
Sun 8/96:25 am
BWI
- SAT
1 stop27h 31m
Frontier
Fri 8/149:51 am
SAT
- BWI
1 stop22h 03m
Frontier
Deal found 6/23![Frontier logo]()
$273
Best flights from Baltimore to San AntonioDiscover carefully curated flight deals from Baltimore to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 25, 2026.
Discover carefully curated flight deals from Baltimore to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 25, 2026.
This Southwest deal was found by Cheapflights users on 6/22. 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 7/223:25 pm
BWI
- SAT
Nonstop3h 30m
Southwest
Wed 7/293:15 pm
SAT
- BWI
Nonstop3h 25m
Southwest
Deal found 6/22![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 6/24. 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 9/165:10 pm
BWI
- SAT
1 stop5h 08m
Delta
Tue 9/222:30 pm
SAT
- BWI
1 stop6h 00m
Delta
Deal found 6/24![Delta logo]()
$353
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/223:03 pm
BWI
- SAT
1 stop7h 10m
United Airlines
Wed 7/296:40 am
SAT
- BWI
1 stop6h 17m
United Airlines
Deal found 6/23![United Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 6/24. 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 7/295:27 pm
BWI
- SAT
1 stop5h 55m
Delta
Wed 8/56:25 am
SAT
- BWI
1 stop5h 40m
Delta
Deal found 6/24![Delta logo]()
$353
This Southwest deal was found by Cheapflights users on 6/23. 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 9/223:15 pm
BWI
- SAT
1 stop7h 15m
Southwest
Wed 9/306:50 am
SAT
- BWI
2 stops7h 00m
Southwest
Deal found 6/23![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 6/20. 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 8/196:00 am
BWI
- SAT
1 stop6h 10m
Delta
Mon 8/246:25 am
SAT
- BWI
1 stop5h 40m
Delta
Deal found 6/20![Delta logo]()
$376
This Southwest deal was found by Cheapflights users on 6/21. 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 8/103:45 pm
BWI
- SAT
Nonstop3h 25m
Southwest
Wed 8/129:20 am
SAT
- BWI
1 stop5h 10m
Southwest
Deal found 6/21![Southwest logo]()
$376
This United Airlines deal was found by Cheapflights users on 6/21. 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 9/166:00 am
BWI
- SAT
2 stops10h 43m
United Airlines
Tue 9/227:35 am
SAT
- BWI
1 stop7h 53m
United Airlines
Deal found 6/21![United Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 6/23. 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 9/215:00 pm
BWI
- SAT
1 stop8h 10m
Delta
Wed 9/305:30 am
SAT
- BWI
1 stop6h 28m
Delta
Deal found 6/23![Delta logo]()
$376
This Southwest deal was found by Cheapflights users on 6/20. 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 8/215:15 pm
BWI
- SAT
2 stops7h 00m
Southwest
Sat 8/229:45 am
SAT
- BWI
2 stops8h 00m
Southwest
Deal found 6/20![Southwest logo]()
$432
This Southwest deal was found by Cheapflights users on 6/24. 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 8/144:30 pm
BWI
- SAT
2 stops6h 25m
Southwest
Mon 8/172:05 pm
SAT
- BWI
1 stop4h 45m
Southwest
Deal found 6/24![Southwest logo]()
$446
Last-minute flights from Baltimore to San AntonioDiscover last-minute flight deals from Baltimore to San Antonio. Data last updated June 25, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to San Antonio. Data last updated June 25, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 6/22. 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 7/99:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Sat 7/184:26 pm
SAT
- BWI
1 stop6h 57m
Frontier
Deal found 6/22![Frontier logo]()
$257
This Frontier deal was found by Cheapflights users on 6/22. 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 7/99:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Fri 7/179:51 am
SAT
- BWI
1 stop9h 52m
Frontier
Deal found 6/22![Frontier logo]()
$270
This Expedia deal was found by Cheapflights users on 6/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/103:21 pm
BWI
- SAT
1 stop25h 20m
Frontier
Sat 7/184:26 pm
SAT
- BWI
1 stop6h 57m
Frontier
Deal found 6/22![Frontier logo]()
$247
This Expedia deal was found by Cheapflights users on 6/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:38 pm
BWI
- SAT
1 stop19h 03m
Frontier
Mon 7/139:51 am
SAT
- BWI
1 stop13h 32m
Frontier
Deal found 6/21![Frontier logo]()
$250
This Expedia deal was found by Cheapflights users on 6/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:25 am
BWI
- SAT
1 stop10h 16m
Frontier
Sat 7/184:26 pm
SAT
- BWI
1 stop15h 28m
Frontier
Deal found 6/25![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 6/23. 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.
Sat 7/116:25 am
BWI
- SAT
1 stop10h 16m
Frontier
Mon 7/209:51 am
SAT
- BWI
1 stop9h 52m
Frontier
Deal found 6/23![Frontier logo]()
$289
This Expedia deal was found by Cheapflights users on 6/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/129:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Fri 7/249:51 am
SAT
- BWI
1 stop13h 32m
Frontier
Deal found 6/21![Frontier logo]()
$286
This Frontier deal was found by Cheapflights users on 6/21. 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.
Sat 7/186:25 am
BWI
- SAT
1 stop10h 16m
Frontier
Sat 7/254:26 pm
SAT
- BWI
1 stop6h 57m
Frontier
Deal found 6/21![Frontier logo]()
$299
This Frontier deal was found by Cheapflights users on 6/24. 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 7/239:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Sat 7/254:26 pm
SAT
- BWI
1 stop6h 57m
Frontier
Deal found 6/24![Frontier logo]()
$245
This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:25 am
BWI
- SAT
1 stop10h 16m
Frontier
Sat 8/14:26 pm
SAT
- BWI
1 stop6h 57m
Frontier
Deal found 6/24![Frontier logo]()
$296
One-way flights from Baltimore to San AntonioSearch for one-way flight options from Baltimore to San Antonio. Find affordable one-way fares based on user searches. Data last updated June 25, 2026.
Search for one-way flight options from Baltimore to San Antonio. Find affordable one-way fares based on user searches. Data last updated June 25, 2026.
This Frontier deal was found by Cheapflights users on 6/22. 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 8/139:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Deal found 6/22![Frontier logo]()
$126
This Super.com deal was found by Cheapflights users on 6/23. 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.
Fri 7/109:38 pm
BWI
- SAT
1 stop19h 03m
Frontier
Deal found 6/23![Frontier logo]()
$130
This Frontier deal was found by Cheapflights users on 6/24. 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 7/239:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Deal found 6/24![Frontier logo]()
$131
This Booking.com deal was found by Cheapflights users on 6/23. 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.
Sun 8/29:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Deal found 6/23![Frontier logo]()
$132
This Frontier deal was found by Cheapflights users on 6/23. 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 9/249:52 pm
BWI
- SAT
1 stop12h 10m
Frontier
Deal found 6/23![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 6/24. 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 7/199:28 pm
BWI
- SAT
1 stop12h 28m
Frontier
Deal found 6/24![Frontier logo]()
$141
This Trip.com deal was found by Cheapflights users on 6/25. 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.
Tue 8/46:35 am
BWI
- SAT
2 stops13h 09m
Frontier
Deal found 6/25![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 8/256:28 pm
BWI
- SAT
3 stops22h 45m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/119:37 pm
BWI
- SAT
2 stops24h 00m
Frontier
Deal found 6/22![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 9/237:27 pm
BWI
- SAT
2 stops41h 31m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 8/189:32 pm
BWI
- SAT
2 stops22h 59m
Frontier
Deal found 6/23![Frontier logo]()
$151
Find flight deals from Baltimore to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) 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 June 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $240 (Expedia) |
One-way from | $126 (Frontier) |
Popular in | June |
Cheapest in | August |
Average price | $556 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore 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 2,558,603 searches. Data last updated June 25, 2026.
Use the filters below to find and compare flights from Baltimore to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Wed 7/22
3:25 pm-5:55 pm
Nonstop3h 30m
San Antonio
Wed 7/29
3:15 pm-7:40 pm
Nonstop3h 25m
$343
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Wed 9/16
5:10 pm-9:18 pm
1 stop5h 08m
San Antonio
Tue 9/22
2:30 pm-9:30 pm
1 stop6h 00m
$353
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Wed 7/29
5:27 pm-10:22 pm
1 stop5h 55m
San Antonio
Wed 8/5
6:25 am-1:05 pm
1 stop5h 40m
$353
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Tue 9/22
3:15 pm-9:30 pm
1 stop7h 15m
San Antonio
Wed 9/30
6:50 am-2:50 pm
2 stops7h 00m
$368
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Wed 8/19
6:00 am-11:10 am
1 stop6h 10m
San Antonio
Mon 8/24
6:25 am-1:05 pm
1 stop5h 40m
$376
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Mon 8/10
3:45 pm-6:10 pm
Nonstop3h 25m
San Antonio
Wed 8/12
9:20 am-3:30 pm
1 stop5h 10m
$376
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Mon 9/21
5:00 pm-12:10 am
1 stop8h 10m
San Antonio
Wed 9/30
5:30 am-12:58 pm
1 stop6h 28m
$376
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Fri 8/21
5:15 pm-11:15 pm
2 stops7h 00m
San Antonio
Sat 8/22
9:45 am-6:45 pm
2 stops8h 00m
$432
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Wed 7/22
3:03 pm-9:13 pm
1 stop7h 10m
San Antonio
Wed 7/29
6:40 am-1:57 pm
1 stop6h 17m
$443
BaltimoreSan Antonio
BWI - SAT
BWISAT
Baltimore/Washington
Fri 8/14
4:30 pm-9:55 pm
2 stops6h 25m
San Antonio
Mon 8/17
2:05 pm-7:50 pm
1 stop4h 45m
$446
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Baltimore 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 Baltimore to San Antonio in June.
| 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 Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Baltimore-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Baltimore-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 Baltimore-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 Baltimore to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Baltimore with our price prediction graph.
BWI-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 Baltimore to San Antonio
How far ahead should I book a flight from Baltimore to San Antonio?
To ensure you get the cheapest price possible for a flight from Baltimore to San Antonio, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Baltimore to San Antonio?
Currently, August is the cheapest month in which you can book a flight from Baltimore to San Antonio (average of $350). Flying from Baltimore to San Antonio in June is currently the most expensive (average of $556). 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 BWI to SAT?
Find hourly flight availability from Baltimore 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 June 25, 2026.
It’s typically best to fly out from Baltimore to San Antonio in the afternoon. Doing so could potentially save you 26% on the flight price compared to flying at noon, which is usually more expensive.
The best insider tips for Baltimore 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 Baltimore 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 June 25, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Baltimore to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Related info for your journey
Find useful and relevant information for your journey from Baltimore 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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
San Antonio flight routes
Alternative routes for Baltimore to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Antonio by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baltimore to San Antonio by cabin class
Find flights from Baltimore to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Baltimore and San Antonio flights
Browse other Baltimore and San Antonio flight options. Last updated on June 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Antonio
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 25, 2026.
Top 6 airlines flying from Baltimore to San Antonio
Discover the top 6 airlines that operate flights from Baltimore 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 2,558,603 searches. Data last updated June 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$144 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$450 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$246 | Average$396 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$400 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$281 | Average$519 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$381 | Average$455 | FlexibilityNo cancel fee | On-time62% |