$161+ Cheap flights from Buffalo to San Antonio (BUF - 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
Jun 24 — Jul 11
Round-trip
1 adult, Economy
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Buffalo to San Antonio
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Best
Last-minute
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Cheapest flights from Buffalo to San AntonioExplore the most affordable flight options available from Buffalo to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 25, 2026.
Explore the most affordable flight options available from Buffalo to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 25, 2026.
This Southwest deal was found by Cheapflights users on 5/22. 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 8/266:25 pm
BUF
- SAT
1 stop5h 45m
Southwest
Wed 9/22:45 pm
SAT
- BUF
1 stop6h 00m
Southwest
Deal found 5/22![Southwest logo]()
$313
This Southwest deal was found by Cheapflights users on 5/20. 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.
Wed 6/174:20 pm
BUF
- SAT
1 stop6h 40m
Southwest
Tue 6/233:15 pm
SAT
- BUF
1 stop6h 25m
Southwest
Deal found 5/20![Southwest logo]()
$333
This Booking.com deal was found by Cheapflights users on 5/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:57 pm
BUF
- SAT
1 stop20h 44m
Frontier
Mon 8/174:26 pm
SAT
- BUF
1 stop25h 41m
Frontier
Deal found 5/20![Frontier logo]()
$337
This Frontier deal was found by Cheapflights users on 5/22. 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.
Sun 7/199:29 pm
BUF
- SAT
1 stop12h 27m
Frontier
Fri 7/249:51 am
SAT
- BUF
1 stop8h 15m
Frontier
Deal found 5/22![Frontier logo]()
$350
This United Airlines deal was found by Cheapflights users on 5/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:30 am
BUF
- SAT
2 stops8h 13m
United Airlines
Sat 8/1512:55 pm
SAT
- BUF
1 stop7h 12m
United Airlines
Deal found 5/20![United Airlines logo]()
$355
This Southwest deal was found by Cheapflights users on 5/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:30 am
BUF
- SAT
2 stops9h 15m
Southwest
Tue 9/19:25 am
SAT
- BUF
2 stops7h 20m
Southwest
Deal found 5/25![Southwest logo]()
$360
This Booking.com deal was found by Cheapflights users on 5/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:02 pm
BUF
- SAT
1 stop19h 39m
Frontier
Mon 8/104:26 pm
SAT
- BUF
1 stop25h 40m
Frontier
Deal found 5/20![Frontier logo]()
$366
This Delta deal was found by Cheapflights users on 5/24. 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.
Mon 9/213:55 pm
BUF
- SAT
1 stop6h 30m
Delta
Mon 9/284:15 pm
SAT
- BUF
1 stop6h 39m
Delta
Deal found 5/24![Delta logo]()
$367
This United Airlines deal was found by Cheapflights users on 5/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:04 pm
BUF
- SAT
1 stop5h 53m
United Airlines
Wed 8/125:30 am
SAT
- BUF
2 stops10h 26m
United Airlines
Deal found 5/24![United Airlines logo]()
$369
Best flights from Buffalo to San AntonioDiscover carefully curated flight deals from Buffalo to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 25, 2026.
Discover carefully curated flight deals from Buffalo to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 25, 2026.
This United Airlines deal was found by Cheapflights users on 5/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:00 am
BUF
- SAT
1 stop5h 52m
United Airlines
Sat 8/1512:55 pm
SAT
- BUF
1 stop7h 12m
United Airlines
Deal found 5/20![United Airlines logo]()
$350
This Frontier deal was found by Cheapflights users on 5/22. 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.
Sun 7/199:29 pm
BUF
- SAT
1 stop12h 27m
Frontier
Fri 7/249:51 am
SAT
- BUF
1 stop8h 15m
Frontier
Deal found 5/22![Frontier logo]()
$350
This Southwest deal was found by Cheapflights users on 5/24. 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 8/149:40 am
BUF
- SAT
2 stops8h 30m
Southwest
Tue 8/182:35 pm
SAT
- BUF
1 stop5h 00m
Southwest
Deal found 5/24![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 5/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:19 pm
BUF
- SAT
1 stop6h 09m
Delta
Tue 8/1812:05 pm
SAT
- BUF
1 stop5h 50m
Delta
Deal found 5/22![Delta logo]()
$447
This Southwest deal was found by Cheapflights users on 5/20. 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.
Thu 8/67:10 pm
BUF
- SAT
1 stop5h 05m
Southwest
Sun 8/94:15 pm
SAT
- BUF
1 stop7h 10m
Southwest
Deal found 5/20![Southwest logo]()
$407
This Southwest deal was found by Cheapflights users on 5/20. 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.
Thu 8/66:30 am
BUF
- SAT
2 stops9h 15m
Southwest
Mon 8/102:05 pm
SAT
- BUF
2 stops6h 45m
Southwest
Deal found 5/20![Southwest logo]()
$414
This United Airlines deal was found by Cheapflights users on 5/23. 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.
Thu 8/206:00 am
BUF
- SAT
1 stop5h 59m
United Airlines
Mon 8/2412:55 pm
SAT
- BUF
1 stop7h 12m
United Airlines
Deal found 5/23![United Airlines logo]()
$457
This Southwest deal was found by Cheapflights users on 5/21. 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.
Thu 7/27:55 pm
BUF
- SAT
1 stop5h 10m
Southwest
Thu 7/93:45 pm
SAT
- BUF
1 stop7h 25m
Southwest
Deal found 5/21![Southwest logo]()
$447
This Southwest deal was found by Cheapflights users on 5/22. 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.
Mon 7/207:55 pm
BUF
- SAT
1 stop5h 15m
Southwest
Fri 7/243:45 pm
SAT
- BUF
1 stop7h 30m
Southwest
Deal found 5/22![Southwest logo]()
$447
This Southwest deal was found by Cheapflights users on 5/23. 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.
Sat 7/185:25 pm
BUF
- SAT
1 stop6h 45m
Southwest
Fri 7/243:45 pm
SAT
- BUF
1 stop7h 30m
Southwest
Deal found 5/23![Southwest logo]()
$447
Last-minute flights from Buffalo to San AntonioDiscover last-minute flight deals from Buffalo to San Antonio. Data last updated May 25, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to San Antonio. Data last updated May 25, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 5/21. 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.
Wed 6/1012:50 pm
BUF
- SAT
1 stop6h 05m
Southwest
Mon 6/153:45 pm
SAT
- BUF
1 stop7h 25m
Southwest
Deal found 5/21![Southwest logo]()
$410
This American Airlines deal was found by Cheapflights users on 5/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/112:47 pm
BUF
- SAT
1 stop6h 39m
American Airlines
Tue 6/1610:00 am
SAT
- BUF
1 stop7h 40m
American Airlines
Deal found 5/24![American Airlines logo]()
$450
This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/122:47 pm
BUF
- SAT
1 stop6h 39m
American Airlines
Mon 6/151:40 pm
SAT
- BUF
1 stop9h 14m
American Airlines
Deal found 5/22![American Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 5/20. 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.
Wed 6/174:20 pm
BUF
- SAT
1 stop6h 40m
Southwest
Tue 6/233:15 pm
SAT
- BUF
1 stop6h 25m
Southwest
Deal found 5/20![Southwest logo]()
$333
This Delta deal was found by Cheapflights users on 5/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:29 am
BUF
- SAT
1 stop5h 06m
Delta
Thu 6/254:00 pm
SAT
- BUF
1 stop7h 03m
Delta
Deal found 5/21![Delta logo]()
$437
This Southwest deal was found by Cheapflights users on 5/21. 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.
Thu 6/188:45 am
BUF
- SAT
1 stop8h 25m
Southwest
Thu 6/253:45 pm
SAT
- BUF
2 stops7h 25m
Southwest
Deal found 5/21![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 5/22. 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.
Mon 6/227:55 pm
BUF
- SAT
1 stop5h 10m
Southwest
Fri 6/263:45 pm
SAT
- BUF
1 stop7h 25m
Southwest
Deal found 5/22![Southwest logo]()
$467
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Thu 6/2510:57 am
BUF
- SAT
1 stop6h 32m
United Airlines
Tue 6/301:20 pm
SAT
- BUF
1 stop6h 43m
United Airlines
Deal found 5/21![United Airlines logo]()
$480
This Delta deal was found by Cheapflights users on 5/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:00 am
BUF
- SAT
1 stop8h 35m
Delta
Mon 6/292:40 pm
SAT
- BUF
1 stop8h 19m
Delta
Deal found 5/21![Delta logo]()
$447
One-way flights from Buffalo to San AntonioSearch for one-way flight options from Buffalo to San Antonio. Find affordable one-way fares based on user searches. Data last updated May 25, 2026.
Search for one-way flight options from Buffalo to San Antonio. Find affordable one-way fares based on user searches. Data last updated May 25, 2026.
This Frontier deal was found by Cheapflights users on 5/24. 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 7/129:29 pm
BUF
- SAT
1 stop12h 27m
Frontier
Deal found 5/24![Frontier logo]()
$161
This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/151:03 pm
BUF
- SAT
1 stop9h 06m
American Airlines
Deal found 5/22![American Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 5/23. 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 7/77:10 pm
BUF
- SAT
1 stop5h 35m
Southwest
Deal found 5/23![Southwest logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 5/24. 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.
Sat 7/1112:28 pm
BUF
- SAT
2 stops31h 26m
Frontier
Deal found 5/24![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 7/79:09 pm
BUF
- SAT
2 stops37h 06m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 5/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:55 am
BUF
- SAT
2 stops9h 48m
United Airlines
Deal found 5/22![United Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 5/22. 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.
Sat 8/1510:02 pm
BUF
- SAT
3 stops37h 48m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:52 pm
BUF
- SAT
2 stops38h 23m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$253
This American Airlines deal was found by Cheapflights users on 5/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/512:47 pm
BUF
- SAT
1 stop8h 39m
American Airlines
Deal found 5/20![American Airlines logo]()
$284
Find flight deals from Buffalo to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) 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 May 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $313 (Southwest) |
One-way from | $161 (Frontier) |
Popular in | April |
Cheapest in | January |
Average price | $484 |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo 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 May 25, 2026.
Use the filters below to find and compare flights from Buffalo to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Wed 8/12
7:00 am-11:52 am
1 stop5h 52m
San Antonio
Sat 8/15
12:55 pm-9:07 pm
1 stop7h 12m
$350
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Sun 7/19
9:29 pm-8:56 am
1 stop12h 27m
San Antonio
Fri 7/24
9:51 am-7:06 pm
1 stop8h 15m
$350
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Fri 8/14
9:40 am-5:10 pm
2 stops8h 30m
San Antonio
Tue 8/18
2:35 pm-8:35 pm
1 stop5h 00m
$395
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Thu 8/6
7:10 pm-11:15 pm
1 stop5h 05m
San Antonio
Sun 8/9
4:15 pm-12:25 am
1 stop7h 10m
$407
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Thu 8/6
6:30 am-2:45 pm
2 stops9h 15m
San Antonio
Mon 8/10
2:05 pm-9:50 pm
2 stops6h 45m
$414
Quickest round-trip
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Fri 8/14
7:19 pm-12:28 am
1 stop6h 09m
San Antonio
Tue 8/18
12:05 pm-6:55 pm
1 stop5h 50m
$447
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Thu 7/2
7:55 pm-12:05 am
1 stop5h 10m
San Antonio
Thu 7/9
3:45 pm-12:10 am
1 stop7h 25m
$447
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Mon 7/20
7:55 pm-12:10 am
1 stop5h 15m
San Antonio
Fri 7/24
3:45 pm-12:15 am
1 stop7h 30m
$447
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Sat 7/18
5:25 pm-11:10 pm
1 stop6h 45m
San Antonio
Fri 7/24
3:45 pm-12:15 am
1 stop7h 30m
$447
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Thu 8/20
6:00 am-10:59 am
1 stop5h 59m
San Antonio
Mon 8/24
12:55 pm-9:07 pm
1 stop7h 12m
$457
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Buffalo 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 Buffalo to San Antonio in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Buffalo-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-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 Buffalo-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 Buffalo to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Buffalo with our price prediction graph.
BUF-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 Buffalo to San Antonio
How far ahead should I book a flight from Buffalo to San Antonio?
To ensure you get the cheapest price possible for a flight from Buffalo to San Antonio, you should look to book at least 37 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 Buffalo to San Antonio?
Currently, January is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of $350). Flying from Buffalo to San Antonio in April is currently the most expensive (average of $486). 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.
How much does it cost to fly round-trip from Buffalo to San Antonio?
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 May 25, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Buffalo to San Antonio to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
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Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Top 4 airlines flying from Buffalo to San Antonio
Discover the top 4 airlines that operate flights from Buffalo 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 May 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$262 | Average$421 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$280 | Average$394 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$312 | Average$446 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$331 | Average$427 | FlexibilityNo cancel fee | On-time69% |