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Cheap flights from Buffalo to San Antonio from C$ 226

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 29 October 2025.

Round-trip from

C$ 398

One-way from

C$ 226

Popular in

December

Cheapest in

September

Average price

C$ 570
5/2-8/2
  • 5/2-8/2
  • 3 total stops
  • 32h 16m total
  • Buffalo to San Antonio
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United Airlines
  • United Airlines
  • 15/12
  • 2 total stops
  • 10h 09m total
  • Buffalo to San Antonio
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Highest demand for flights based on searches. 1% potential increase in price (C$ 13 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Buffalo to San Antonio

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to San Antonio
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 29 October 2025.

Fri 14/119:53 p.m.BUF - SAT
1 stop13h 10mMultiple Airlines
Sun 16/114:54 p.m.SAT - BUF
1 stop17h 50mMultiple Airlines
Deal found 28/10C$ 407
Wed 24/122:05 p.m.BUF - SAT
1 stop9h 10mSouthwest
Tue 30/127:00 a.m.SAT - BUF
1 stop6h 05mSouthwest
Deal found 27/10C$ 416
Mon 15/127:40 a.m.BUF - SAT
1 stop6h 25mSouthwest
Wed 17/123:05 p.m.SAT - BUF
1 stop5h 55mSouthwest
Deal found 28/10C$ 437
Tue 9/1212:35 p.m.BUF - SAT
2 stops8h 30mSouthwest
Thu 11/125:45 a.m.SAT - BUF
1 stop5h 15mSouthwest
Deal found 28/10C$ 444
Fri 14/119:53 p.m.BUF - SAT
1 stop20h 17mFrontier
Sun 16/118:25 p.m.SAT - BUF
2 stops14h 19mFrontier
Deal found 28/10C$ 467
Mon 15/125:55 a.m.BUF - SAT
2 stops8h 40mSouthwest
Thu 18/125:35 a.m.SAT - BUF
1 stop12h 45mSouthwest
Deal found 28/10C$ 504
Tue 23/128:40 p.m.BUF - SAT
1 stop5h 40mSouthwest
Thu 25/1211:05 a.m.SAT - BUF
1 stop9h 00mSouthwest
Deal found 27/10C$ 531
Sat 13/125:40 p.m.BUF - SAT
1 stop6h 19mUnited Airlines
Sat 20/122:08 p.m.SAT - BUF
1 stop5h 46mUnited Airlines
Deal found 29/10C$ 541
Mon 15/121:50 p.m.BUF - SAT
2 stops10h 09mUnited Airlines
Thu 18/127:05 a.m.SAT - BUF
1 stop6h 09mUnited Airlines
Deal found 28/10C$ 556

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 629,999 searches. Data last updated 29 October 2025.
Use the filters below to find and compare flights from Buffalo to San Antonio that are best for you.

Fly from

Buffalo

Fly to

San Antonio

Route

Depart

Return

Price

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 9/12

6:15 a.m.-11:25 a.m.

1 stop6h 10m

San Antonio

Thu 11/12

5:45 a.m.-2:20 p.m.

1 stop7h 35m

C$ 437

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 15/12

5:50 p.m.-10:57 p.m.

1 stop6h 07m

San Antonio

Thu 18/12

4:35 p.m.-10:58 p.m.

1 stop5h 23m

C$ 437

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 15/12

7:40 a.m.-1:05 p.m.

1 stop6h 25m

San Antonio

Wed 17/12

3:05 p.m.-10:00 p.m.

1 stop5h 55m

C$ 437

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 26/2

6:25 a.m.-11:33 a.m.

1 stop6h 08m

San Antonio

Sat 28/2

7:00 a.m.-1:02 p.m.

1 stop5h 02m

C$ 461

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 14/11

9:53 p.m.-5:10 p.m.

1 stop20h 17m

San Antonio

Sun 16/11

8:25 p.m.-11:44 a.m.

2 stops14h 19m

C$ 467

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 5/2

6:03 a.m.-11:28 a.m.

1 stop6h 25m

San Antonio

Sun 8/2

12:55 p.m.-12:16 a.m.

1 stop10h 21m

C$ 495

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 15/12

1:50 p.m.-10:59 p.m.

2 stops10h 09m

C$ 226

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 25/11

6:24 a.m.-1:01 p.m.

1 stop7h 37m

C$ 249

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 26/11

1:52 p.m.-10:56 p.m.

2 stops10h 04m

C$ 362

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 25/11

7:00 a.m.-3:29 p.m.

2 stops9h 29m

C$ 390

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 11 results
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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.
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?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to San Antonio. Price data was last updated on 24 October 2025.

The price you pay for your flight from Buffalo to San Antonio may vary depending on when you book. For the best chance of a lower fare, look to book 60 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 C$ 207). Flying from Buffalo to San Antonio in February is currently the most expensive (average of C$ 354). 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 BUF to SAT?

Find hourly flight availability from Buffalo 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 29 October 2025.

It’s typically best to fly out from Buffalo to San Antonio at noon. Doing so could potentially save you 27% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 29 October 2025.
Get a feel of what it's like to fly with Southwest from Buffalo 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.
Southwest
8.0
Very good
4,241 reviews
Check prices

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews
Check prices

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Buffalo to San Antonio?

    For as low as C$ 437, Southwest can have you in San Antonio from Buffalo in 6h 07m. There are 2303 km between Buffalo and San Antonio. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Buffalo to San Antonio round-trip?

    Cheapflights users have booked flights from Buffalo to San Antonio round-trip from C$ 499. You may be able to fly from Buffalo to San Antonio for 14% less than the average price by searching for this airline.

  • Can I find deals for flights from Buffalo to San Antonio that include hotel bookings?

    Yes. In addition to deals on Buffalo to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to San Antonio.

  • Can I find deals for business class flights from Buffalo to San Antonio?

    Yes. Cheapflights offers flight deals from Buffalo to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 C$ 207). Flying from Buffalo to San Antonio in February is currently the most expensive (average of C$ 354). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Buffalo to San Antonio

Discover the top airline 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 629,999 searches. Data last updated 29 October 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 499AverageC$ 588FlexibilityNo cancel feeOn-time63%
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