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Cheap flights from Buffalo to San Antonio from C$ 406

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 25/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
15 Jan — 22 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 16 December 2025.

Thu 25/126:00 a.m.BUF - SAT
1 stop7h 28mDelta
Thu 1/15:20 a.m.SAT - BUF
1 stop5h 01mDelta
Deal found 15/12C$ 406
Thu 25/125:41 p.m.BUF - SAT
1 stop6h 13mUnited Airlines
Thu 1/19:51 a.m.SAT - BUF
2 stops10h 03mUnited Airlines
Deal found 16/12C$ 468
Wed 31/122:50 p.m.BUF - SAT
1 stop6h 34mUnited Airlines
Sun 4/16:40 a.m.SAT - BUF
1 stop5h 44mUnited Airlines
Deal found 16/12C$ 772
Thu 25/126:15 a.m.BUF - SAT
2 stops9h 15mSouthwest
Thu 1/16:20 a.m.SAT - BUF
2 stops8h 30mSouthwest
Deal found 16/12C$ 845
Wed 24/126:10 a.m.BUF - SAT
1 stop5h 58mDelta
Sun 28/126:22 p.m.SAT - BUF
1 stop15h 40mDelta
Deal found 15/12C$ 864
Wed 24/126:00 a.m.BUF - SAT
1 stop8h 05mSouthwest
Sun 28/125:40 a.m.SAT - BUF
1 stop7h 55mSouthwest
Deal found 16/12C$ 944
Wed 24/121:59 p.m.BUF - SAT
2 stops9h 49mUnited Airlines
Sun 28/129:51 a.m.SAT - BUF
2 stops10h 03mUnited Airlines
Deal found 16/12C$ 958

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 16 December 2025.

Round-trip from

C$ 509

Popular in

January

Cheapest in

September

Average price

C$ 563
Delta
  • Delta
  • 6/3-11/3
  • 2 total stops
  • 14h 28m total
  • Buffalo to San Antonio
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 16 December 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

Fri 6/3

6:00 a.m.-12:40 p.m.

1 stop7h 40m

San Antonio

Wed 11/3

10:46 a.m.-6:34 p.m.

1 stop6h 48m

C$ 509

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 17/2

6:35 p.m.-12:34 a.m.

1 stop6h 59m

San Antonio

Sun 22/2

5:25 a.m.-11:43 a.m.

1 stop5h 18m

C$ 535

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 7/2

3:43 p.m.-10:10 p.m.

1 stop7h 27m

San Antonio

Fri 13/2

4:29 p.m.-11:31 p.m.

1 stop6h 02m

C$ 535

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 8/4

9:25 a.m.-4:15 p.m.

1 stop7h 50m

San Antonio

Wed 15/4

2:35 p.m.-8:25 p.m.

1 stop4h 50m

C$ 588

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 25/3

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

1 stop6h 10m

San Antonio

Sun 29/3

5:10 a.m.-11:44 a.m.

1 stop5h 34m

C$ 588

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 12/2

6:35 p.m.-12:34 a.m.

1 stop6h 59m

San Antonio

Mon 16/2

4:29 p.m.-11:31 p.m.

1 stop6h 02m

C$ 588

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 22/1

5:23 p.m.-11:13 p.m.

1 stop6h 50m

San Antonio

Mon 26/1

7:25 a.m.-2:14 p.m.

1 stop5h 49m

C$ 593

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 28/12

6:10 a.m.-11:07 a.m.

1 stop5h 57m

C$ 714

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 28/12

7:48 p.m.-10:40 a.m.

2 stops15h 52m

C$ 1,298

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/12

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 12 December 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, October is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of C$ 190). Flying from Buffalo to San Antonio in February is currently the most expensive (average of C$ 345). 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 16 December 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.

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$ 509, Delta can have you in San Antonio from Buffalo in 7h 40m. There are 2303 km between Buffalo and San Antonio. This flight may include one or multiple stops.

  • 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, October is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of C$ 190). Flying from Buffalo to San Antonio in February is currently the most expensive (average of C$ 345). 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.

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