$155+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
Aug 17 — Aug 241
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Buffalo 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.Cheap flight deals from Buffalo to San Antonio
Cheapest
Best
Last-minute
One-way
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 July 18, 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 July 18, 2026.
This Expedia deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:33 pm
BUF
- SAT
1 stop12h 23m
Frontier
Mon 8/179:51 am
SAT
- BUF
1 stop22h 32m
Frontier
Deal found 7/18![Frontier logo]()
$256
This CheapOair deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:54 pm
BUF
- SAT
1 stop15h 02m
Frontier
Mon 8/319:51 am
SAT
- BUF
1 stop22h 32m
Frontier
Deal found 7/18![Frontier logo]()
$282
This Delta deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:40 pm
BUF
- SAT
1 stop5h 48m
Delta
Thu 12/108:00 am
SAT
- BUF
1 stop6h 29m
Delta
Deal found 7/14![Delta logo]()
$313
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:00 am
BUF
- SAT
1 stop6h 15m
Southwest
Tue 12/17:30 am
SAT
- BUF
2 stops7h 30m
Southwest
Deal found 7/17![Southwest logo]()
$318
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:51 pm
BUF
- SAT
1 stop7h 47m
American Airlines
Sat 9/52:45 pm
SAT
- BUF
2 stops8h 17m
American Airlines
Deal found 7/15![American Airlines logo]()
$319
This CheapOair deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:57 pm
BUF
- SAT
1 stop20h 44m
Frontier
Fri 8/219:51 am
SAT
- BUF
1 stop7h 18m
Frontier
Deal found 7/16![Frontier logo]()
$334
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:58 pm
BUF
- SAT
1 stop5h 53m
United Airlines
Mon 9/141:00 pm
SAT
- BUF
2 stops9h 44m
United Airlines
Deal found 7/16![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:03 pm
BUF
- SAT
1 stop9h 35m
American Airlines
Sun 9/64:22 pm
SAT
- BUF
1 stop5h 39m
American Airlines
Deal found 7/18![American Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:00 am
BUF
- SAT
2 stops7h 49m
American Airlines
Sat 9/512:36 pm
SAT
- BUF
2 stops8h 20m
American Airlines
Deal found 7/14![American Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:30 am
BUF
- SAT
1 stop12h 00m
Southwest
Wed 8/199:25 am
SAT
- BUF
2 stops7h 20m
Southwest
Deal found 7/16![Southwest logo]()
$355
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 July 18, 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 July 18, 2026.
This American Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:03 pm
BUF
- SAT
1 stop8h 54m
American Airlines
Wed 8/197:28 am
SAT
- BUF
1 stop8h 36m
American Airlines
Deal found 7/14![American Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:30 am
BUF
- SAT
1 stop7h 01m
United Airlines
Wed 8/191:00 pm
SAT
- BUF
2 stops9h 44m
United Airlines
Deal found 7/14![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:40 am
BUF
- SAT
1 stop8h 19m
Delta
Fri 9/47:55 am
SAT
- BUF
1 stop6h 11m
Delta
Deal found 7/14![Delta logo]()
$380
This Southwest deal was found by Cheapflights users on 7/13. 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 8/146:30 am
BUF
- SAT
2 stops9h 15m
Southwest
Mon 8/172:55 pm
SAT
- BUF
1 stop5h 55m
Southwest
Deal found 7/13![Southwest logo]()
$385
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:00 am
BUF
- SAT
1 stop6h 51m
United Airlines
Wed 8/1912:55 pm
SAT
- BUF
1 stop7h 12m
United Airlines
Deal found 7/17![United Airlines logo]()
$356
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:35 pm
BUF
- SAT
2 stops6h 20m
Southwest
Wed 8/199:20 am
SAT
- BUF
2 stops7h 25m
Southwest
Deal found 7/17![Southwest logo]()
$407
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:58 pm
BUF
- SAT
1 stop5h 52m
United Airlines
Sat 8/2912:15 pm
SAT
- BUF
1 stop5h 45m
United Airlines
Deal found 7/16![United Airlines logo]()
$403
Last-minute flights from Buffalo to San AntonioDiscover last-minute flight deals from Buffalo to San Antonio. Data last updated July 18, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to San Antonio. Data last updated July 18, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/269:29 pm
BUF
- SAT
1 stop12h 27m
Frontier
Fri 8/79:51 am
SAT
- BUF
1 stop8h 15m
Frontier
Deal found 7/17![Frontier logo]()
$360
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/62:51 pm
BUF
- SAT
1 stop7h 47m
American Airlines
Wed 8/1912:29 pm
SAT
- BUF
1 stop8h 26m
American Airlines
Deal found 7/16![American Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:30 am
BUF
- SAT
1 stop12h 00m
Southwest
Wed 8/199:25 am
SAT
- BUF
2 stops7h 20m
Southwest
Deal found 7/16![Southwest logo]()
$355
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:00 am
BUF
- SAT
1 stop6h 51m
United Airlines
Wed 8/1912:55 pm
SAT
- BUF
1 stop7h 12m
United Airlines
Deal found 7/17![United Airlines logo]()
$356
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:25 pm
BUF
- SAT
1 stop5h 45m
Southwest
Wed 8/199:20 am
SAT
- BUF
2 stops7h 25m
Southwest
Deal found 7/17![Southwest logo]()
$380
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:30 am
BUF
- SAT
1 stop7h 01m
United Airlines
Wed 8/191:00 pm
SAT
- BUF
2 stops9h 44m
United Airlines
Deal found 7/14![United Airlines logo]()
$318
This Expedia deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:33 pm
BUF
- SAT
1 stop12h 23m
Frontier
Mon 8/179:51 am
SAT
- BUF
1 stop22h 32m
Frontier
Deal found 7/18![Frontier logo]()
$256
This Delta deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:57 am
BUF
- SAT
1 stop7h 57m
Delta
Tue 8/182:43 pm
SAT
- BUF
1 stop8h 16m
Delta
Deal found 7/18![Delta logo]()
$375
This CheapOair deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:57 pm
BUF
- SAT
1 stop20h 44m
Frontier
Fri 8/219:51 am
SAT
- BUF
1 stop7h 18m
Frontier
Deal found 7/16![Frontier logo]()
$334
This CheapOair deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:54 pm
BUF
- SAT
1 stop15h 02m
Frontier
Mon 8/319:51 am
SAT
- BUF
1 stop22h 32m
Frontier
Deal found 7/18![Frontier logo]()
$282
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:51 pm
BUF
- SAT
1 stop7h 47m
American Airlines
Sat 9/52:45 pm
SAT
- BUF
2 stops8h 17m
American Airlines
Deal found 7/15![American Airlines logo]()
$319
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 July 18, 2026.
Search for one-way flight options from Buffalo to San Antonio. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
This Trip.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:33 pm
BUF
- SAT
1 stop12h 23m
Frontier
Deal found 7/18![Frontier logo]()
$155
This Delta deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:19 pm
BUF
- SAT
1 stop6h 09m
Delta
Deal found 7/14![Delta logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:48 pm
BUF
- SAT
2 stops31h 41m
Frontier
Deal found 7/14![Frontier logo]()
$171
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:25 am
BUF
- SAT
1 stop7h 45m
Southwest
Deal found 7/17![Southwest logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:36 am
BUF
- SAT
2 stops32h 55m
Frontier
Deal found 7/17![Frontier logo]()
$189
This Frontier deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/269:29 pm
BUF
- SAT
1 stop12h 27m
Frontier
Deal found 7/15![Frontier logo]()
$202
This Southwest deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:05 am
BUF
- SAT
1 stop10h 10m
Southwest
Deal found 7/16![Southwest logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/49:09 pm
BUF
- SAT
2 stops24h 28m
Frontier
Deal found 7/14![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:57 pm
BUF
- SAT
2 stops25h 40m
Frontier
Deal found 7/14![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:52 pm
BUF
- SAT
3 stops21h 21m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$231
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:05 am
BUF
- SAT
1 stop10h 10m
Southwest
Deal found 7/14![Southwest logo]()
$235
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 July 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $313 (Delta) |
One-way from | $155 (Trip.com) |
Popular in | June |
Cheapest in | January |
Average price | $479 |
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 July 18, 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
1:03 pm-8:57 pm
1 stop8h 54m
San Antonio
Wed 8/19
7:28 am-5:04 pm
1 stop8h 36m
$313
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Wed 8/12
10:30 am-4:31 pm
1 stop7h 01m
San Antonio
Wed 8/19
1:00 pm-11:44 pm
2 stops9h 44m
$318
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Tue 8/11
6:00 am-11:51 am
1 stop6h 51m
San Antonio
Wed 8/19
12:55 pm-9:07 pm
1 stop7h 12m
$356
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Mon 8/31
6:40 am-1:59 pm
1 stop8h 19m
San Antonio
Fri 9/4
7:55 am-3:06 pm
1 stop6h 11m
$380
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Fri 8/14
6:30 am-2:45 pm
2 stops9h 15m
San Antonio
Mon 8/17
2:55 pm-9:50 pm
1 stop5h 55m
$385
Quickest round-trip
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Wed 8/26
5:58 pm-10:50 pm
1 stop5h 52m
San Antonio
Sat 8/29
12:15 pm-7:00 pm
1 stop5h 45m
$403
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Tue 8/11
12:35 pm-5:55 pm
2 stops6h 20m
San Antonio
Wed 8/19
9:20 am-5:45 pm
2 stops7h 25m
$407
Cheapest one-way
Quickest one-way
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Mon 8/17
5:58 pm-10:50 pm
1 stop5h 52m
$157
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Wed 8/5
7:19 pm-12:28 am
1 stop6h 09m
$157
BuffaloSan Antonio
BUF - SAT
BUFSAT
Buffalo
Mon 8/31
11:25 am-6:10 pm
1 stop7h 45m
$188
Showing 1-10 of 16 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 July.
| 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 June is currently the most expensive (average of $510). 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 July 18, 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.
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Related info for your journey
Find useful and relevant information for your journey from Buffalo 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
Other flights from Buffalo
Popular flights
San Antonio flight routes
Alternative routes for Buffalo 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 Buffalo to San Antonio by cabin class
Find flights from Buffalo to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Buffalo and San Antonio flights
Browse other Buffalo and San Antonio flight options. Last updated on July 18, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on July 18, 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 July 18, 2026.
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 July 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$260 | Average$394 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$262 | Average$399 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$312 | Average$476 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$331 | Average$427 | FlexibilityNo cancel fee | On-time69% |