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Cheap flights from Buffalo to San Antonio from C$ 251

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 23/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
31 May — 7 Jun1
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 1 May 2026.

Wed 27/57:39 p.m.
BUF
-
SAT
1 stop6h 05m
Delta
Wed 3/64:15 p.m.
SAT
-
BUF
1 stop6h 44m
Delta
Deal found 29/4C$ 427
Wed 3/66:05 a.m.
BUF
-
SAT
1 stop7h 45m
Southwest
Wed 10/62:00 p.m.
SAT
-
BUF
2 stops7h 40m
Southwest
Deal found 28/4C$ 492
Fri 14/84:35 p.m.
BUF
-
SAT
1 stop6h 25m
Southwest
Tue 18/82:05 p.m.
SAT
-
BUF
1 stop6h 00m
Southwest
Deal found 28/4C$ 518
Wed 27/59:25 a.m.
BUF
-
SAT
1 stop7h 50m
Southwest
Wed 3/69:40 a.m.
SAT
-
BUF
2 stops7h 35m
Southwest
Deal found 29/4C$ 525
Thu 28/57:00 a.m.
BUF
-
SAT
1 stop6h 12m
United Airlines
Mon 1/61:40 p.m.
SAT
-
BUF
1 stop6h 23m
United Airlines
Deal found 26/4C$ 531
Sun 14/69:02 p.m.
BUF
-
SAT
1 stop19h 35m
Multiple Airlines
Sun 21/69:55 a.m.
SAT
-
BUF
1 stop9h 22m
Multiple Airlines
Deal found 30/4C$ 563
Sat 8/810:40 a.m.
BUF
-
SAT
2 stops9h 00m
Southwest
Tue 11/82:45 p.m.
SAT
-
BUF
1 stop6h 00m
Southwest
Deal found 28/4C$ 566
Thu 28/55:00 a.m.
BUF
-
SAT
2 stops9h 15m
Southwest
Mon 1/61:55 p.m.
SAT
-
BUF
2 stops8h 25m
Southwest
Deal found 26/4C$ 569
Wed 20/57:00 a.m.
BUF
-
SAT
1 stop6h 15m
United Airlines
Mon 25/51:40 p.m.
SAT
-
BUF
1 stop6h 23m
United Airlines
Deal found 25/4C$ 576
Tue 11/88:55 a.m.
BUF
-
SAT
2 stops7h 45m
Southwest
Fri 21/82:15 p.m.
SAT
-
BUF
1 stop5h 35m
Southwest
Deal found 25/4C$ 584

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 1 May 2026.

Round-trip from

C$ 427

One-way from

C$ 251

Popular in

March

Cheapest in

September

Average price

C$ 537
Delta
  • Delta
  • 27/5-3/6
  • 2 total stops
  • 12h 49m total
  • Buffalo to San Antonio
Search Deals
Delta
  • Delta
  • 23/5
  • 1 total stop
  • 7h 35m total
  • Buffalo to San Antonio
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 1 May 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

Price

Cheapest round-trip

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 17/6

6:00 a.m.-12:30 p.m.

1 stop7h 30m

San Antonio

Tue 23/6

1:40 p.m.-9:03 p.m.

1 stop6h 23m

C$ 427
Quickest round-trip

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 11/8

7:40 p.m.-12:15 a.m.

1 stop5h 35m

San Antonio

Fri 21/8

4:00 p.m.-11:03 p.m.

1 stop6h 03m

C$ 518

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 20/5

7:00 a.m.-12:15 p.m.

1 stop6h 15m

San Antonio

Mon 25/5

1:40 p.m.-9:03 p.m.

1 stop6h 23m

C$ 576

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 11/8

3:00 p.m.-9:40 p.m.

2 stops7h 40m

San Antonio

Fri 21/8

5:35 a.m.-6:25 p.m.

2 stops11h 50m

C$ 599

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 26/6

5:55 p.m.-1:00 a.m.

2 stops8h 05m

San Antonio

Sat 27/6

5:10 a.m.-2:00 p.m.

1 stop7h 50m

C$ 617

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 10/8

6:30 a.m.-2:45 p.m.

2 stops9h 15m

San Antonio

Sat 15/8

8:35 a.m.-5:40 p.m.

2 stops8h 05m

C$ 637

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 14/8

10:25 a.m.-7:53 p.m.

2 stops10h 28m

San Antonio

Tue 18/8

5:30 a.m.-2:22 p.m.

2 stops7h 52m

C$ 655

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 8/8

10:40 a.m.-6:40 p.m.

2 stops9h 00m

San Antonio

Sat 15/8

8:35 a.m.-5:40 p.m.

2 stops8h 05m

C$ 664

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 9/6

5:52 p.m.-10:57 p.m.

1 stop6h 05m

San Antonio

Wed 10/6

5:30 a.m.-4:46 p.m.

2 stops10h 16m

C$ 683
Cheapest one-way

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 23/5

3:52 p.m.-10:27 p.m.

1 stop7h 35m

C$ 251

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/4

Showing 1-10 of 15 resultsSorted by cheapest first
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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?

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 37 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, September is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of C$ 476). Flying from Buffalo to San Antonio in March is currently the most expensive (average of C$ 641). 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?

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$ 518, United Airlines can have you in San Antonio from Buffalo in 5h 35m. 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, September is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of C$ 476). Flying from Buffalo to San Antonio in March is currently the most expensive (average of C$ 641). 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

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