$125+ Cheap flights from Baltimore to San Antonio (BWI - 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SAT
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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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 January or October, booked 88 days in advance, depart on a Wednesday or Thursday 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 September 8, 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 September 8, 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 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 Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:27 am -
1 stop24h 40m
Mon 10/510:05 am -
1 stop21h 26m
Deal found 9/7![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 9/3. 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 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
Mon 12/79:07 pm -
1 stop12h 14m
Deal found 9/3![Frontier logo]()
$264
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 Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:04 pm -
1 stop19h 04m
Mon 10/2610:03 am -
1 stop27h 05m
Deal found 9/4![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 10/89:59 pm -
1 stop12h 09m
Mon 10/1210:03 am -
1 stop21h 17m
Deal found 9/6![Frontier logo]()
$289
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 September 8, 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 September 8, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 pm -
1 stop6h 20m
Tue 10/133:40 pm -
Nonstop3h 15m
Deal found 9/7![Southwest logo]()
$327
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 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.
Mon 11/98:00 pm -
Nonstop3h 50m
Mon 11/164:35 pm -
1 stop5h 10m
Deal found 9/3![Southwest logo]()
$327
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.
Sat 10/36:30 pm -
Nonstop3h 40m
Sat 10/1712:45 pm -
1 stop5h 55m
Deal found 9/3![Southwest logo]()
$327
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:50 pm -
2 stops6h 50m
Sat 11/72:20 pm -
Nonstop3h 10m
Deal found 9/7![Southwest logo]()
$332
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:15 am -
Nonstop4h 00m
Sun 12/65:55 pm -
1 stop5h 45m
Deal found 9/7![Southwest logo]()
$412
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.
Sat 10/310:25 am -
Nonstop3h 35m
Mon 10/124:55 pm -
Nonstop3h 20m
Deal found 9/6![Southwest logo]()
$423
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am -
Nonstop4h 05m
Fri 11/275:20 pm -
Nonstop3h 10m
Deal found 9/7![Southwest logo]()
$435
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 10/168:25 am -
Nonstop3h 35m
Tue 10/2010:00 am -
2 stops6h 30m
Deal found 9/4![Southwest logo]()
$438
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.
Mon 10/265:25 pm -
2 stops7h 45m
Fri 10/301:10 pm -
2 stops6h 15m
Deal found 9/6![Southwest logo]()
$453
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.
Thu 12/38:15 am -
Nonstop4h 00m
Sun 12/67:30 am -
1 stop4h 40m
Deal found 9/4![Southwest logo]()
$465
Last-minute flights from Baltimore to San AntonioDiscover last-minute flight deals from Baltimore to San Antonio. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to San Antonio. Data last updated September 8, 2026 and is based on user searches.
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 9/249:32 pm -
1 stop12h 38m
Fri 10/210:05 am -
1 stop9h 39m
Deal found 9/4![Frontier logo]()
$300
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 Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:27 am -
1 stop24h 40m
Mon 10/510:05 am -
1 stop21h 26m
Deal found 9/7![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 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 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 Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:04 pm -
1 stop19h 04m
Mon 10/2610:03 am -
1 stop27h 05m
Deal found 9/4![Frontier logo]()
$279
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 September 8, 2026.
Search for one-way flight options from Baltimore to San Antonio. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Frontier 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 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 9/3![Frontier logo]()
$125
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.
Wed 12/212:40 pm -
1 stop8h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![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 Frontier 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 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 9/3![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.
Tue 10/69:27 am -
1 stop24h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$141
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.
Fri 12/412:40 pm -
1 stop8h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$150
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 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.
Sun 9/279:32 pm -
1 stop12h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$156
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.
Sat 10/36:30 pm -
Nonstop3h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Southwest logo]()
$159
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.
Tue 9/2910:21 am -
1 stop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$164
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.
Sat 10/3110:16 am -
2 stops24h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$165
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 9/299:25 pm -
2 stops23h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$166
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 September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $226 (Kiwi.com) |
One-way from | $125 (Frontier) |
Popular in | June |
Cheapest in | January |
Average price | $486 |
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 7,457,451 searches. Data last updated September 8, 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
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Tue 9/29
10:21 am-5:01 pm
1 stop7h 40m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
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
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Wed 9/30
10:21 am-5:01 pm
1 stop7h 40m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$174
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Fri 10/2
8:25 am-11:00 am
Nonstop3h 35m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$185
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
Fri 9/25
9:09 am-4:31 pm
1 stop8h 22m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$190
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Mon 10/5
8:25 pm-11:05 pm
Nonstop3h 40m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$212
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Fri 10/23
8:25 pm-11:05 pm
Nonstop3h 40m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$212
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Mon 10/5
3:04 pm-7:28 pm
1 stop5h 24m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$222
BaltimoreSan Antonio
BWI Baltimore/Washington - SAT San Antonio
BWISAT
Baltimore/Washington
Sat 12/5
9:30 am-3:20 pm
1 stop6h 50m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$222
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 September.
| 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 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 87 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, January is the cheapest month in which you can book a flight from Baltimore to San Antonio (average of $429). Flying from Baltimore to San Antonio in June is currently the most expensive (average of $574). 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 September 8, 2026.
It’s typically best to fly out from Baltimore to San Antonio in the afternoon. Doing so could potentially save you 13% 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 September 8, 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
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
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
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Baltimore and San Antonio flights
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Top 5 airlines flying from Baltimore to San Antonio
Discover the top 5 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 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$246 | Average$397 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$438 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$280 | Average$472 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$343 | Average$519 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$381 | Average$455 | FlexibilityNo cancel fee | On-time62% |