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Cheap flights from Buffalo to San Antonio from C$ 175

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
16 Apr — 23 Apr1
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 17 March 2026.

Tue 14/46:55 p.m.
BUF
-
SAT
1 stop5h 55m
Southwest
Tue 21/49:05 a.m.
SAT
-
BUF
1 stop5h 15m
Southwest
Deal found 17/3C$ 429
Tue 12/59:25 a.m.
BUF
-
SAT
1 stop7h 50m
Southwest
Thu 14/510:05 a.m.
SAT
-
BUF
1 stop11h 40m
Southwest
Deal found 12/3C$ 459
Thu 30/47:40 p.m.
BUF
-
SAT
1 stop6h 06m
Delta
Mon 4/54:44 p.m.
SAT
-
BUF
1 stop4h 55m
Delta
Deal found 12/3C$ 502
Mon 30/31:00 p.m.
BUF
-
SAT
2 stops24h 27m
Multiple Airlines
Thu 16/42:12 p.m.
SAT
-
BUF
1 stop18h 45m
Multiple Airlines
Deal found 14/3C$ 507
Wed 29/44:00 p.m.
BUF
-
SAT
2 stops8h 50m
Southwest
Wed 6/59:05 a.m.
SAT
-
BUF
1 stop5h 15m
Southwest
Deal found 15/3C$ 509
Tue 14/44:00 p.m.
BUF
-
SAT
1 stop6h 40m
Southwest
Fri 17/44:30 p.m.
SAT
-
BUF
1 stop5h 50m
Southwest
Deal found 12/3C$ 520
Wed 27/59:25 a.m.
BUF
-
SAT
1 stop7h 50m
Southwest
Sat 30/53:10 p.m.
SAT
-
BUF
2 stops7h 15m
Southwest
Deal found 12/3C$ 527
Sun 29/39:25 p.m.
BUF
-
SAT
1 stop16h 02m
Multiple Airlines
Thu 16/43:00 p.m.
SAT
-
BUF
2 stops19h 13m
Multiple Airlines
Deal found 14/3C$ 533

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 17 March 2026.

Round-trip from

C$ 429

One-way from

C$ 175

Popular in

March

Cheapest in

September

Average price

C$ 639
Southwest
  • Southwest
  • 14/4-21/4
  • 2 total stops
  • 11h 10m total
  • Buffalo to San Antonio
Search Deals
Frontier
  • Frontier
  • 27/4
  • 2 total stops
  • 52h 21m total
  • Buffalo to San Antonio
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 17 March 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

Tue 14/4

6:55 p.m.-11:50 p.m.

1 stop5h 55m

San Antonio

Tue 21/4

9:05 a.m.-3:20 p.m.

1 stop5h 15m

C$ 429

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 30/4

8:00 p.m.-12:30 a.m.

1 stop5h 30m

San Antonio

Thu 7/5

5:00 a.m.-12:00 p.m.

1 stop6h 00m

C$ 502

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 14/4

4:00 p.m.-9:40 p.m.

1 stop6h 40m

San Antonio

Fri 17/4

4:30 p.m.-11:20 p.m.

1 stop5h 50m

C$ 520

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 6/4

7:48 p.m.-12:38 a.m.

1 stop5h 50m

San Antonio

Fri 10/4

4:29 p.m.-11:46 p.m.

1 stop6h 17m

C$ 585

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 12/5

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

1 stop7h 50m

San Antonio

Sun 17/5

5:05 a.m.-2:15 p.m.

2 stops8h 10m

C$ 609

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 30/4

10:35 a.m.-10:55 p.m.

2 stops13h 20m

San Antonio

Mon 4/5

7:00 a.m.-2:10 p.m.

1 stop6h 10m

C$ 646

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 19/5

6:55 a.m.-6:00 p.m.

2 stops12h 05m

San Antonio

Sun 24/5

3:05 p.m.-11:15 p.m.

2 stops7h 10m

C$ 652
Quickest round-trip

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 29/3

7:38 p.m.-12:38 a.m.

1 stop6h 00m

San Antonio

Tue 14/4

4:44 p.m.-10:39 p.m.

1 stop4h 55m

C$ 663

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 13/4

6:02 p.m.-11:07 p.m.

1 stop6h 05m

San Antonio

Thu 16/4

6:49 a.m.-1:13 p.m.

1 stop5h 24m

C$ 694

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 27/3

7:38 p.m.-12:38 a.m.

1 stop6h 00m

San Antonio

Thu 2/4

12:34 p.m.-6:53 p.m.

1 stop5h 19m

C$ 738

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/3

Showing 1-10 of 22 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?

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 13 March 2026.

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 38 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$ 189). Flying from Buffalo to San Antonio in April is currently the most expensive (average of C$ 330). 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.

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$ 429, Southwest can have you in San Antonio from Buffalo in 5h 55m. There are 2303 km between Buffalo and San Antonio.

  • 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$ 189). Flying from Buffalo to San Antonio in April is currently the most expensive (average of C$ 330). 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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