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Cheap flights from Buffalo to San Antonio from C$ 216

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
27 Aug — 3 Sep1
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 28 July 2026.

Wed 21/106:10 a.m.
BUF
-
SAT
1 stop5h 30m
Delta
Tue 27/105:15 a.m.
SAT
-
BUF
1 stop5h 20m
Delta
Deal found 26/7C$ 441
Wed 21/107:00 p.m.
BUF
-
SAT
1 stop5h 30m
Southwest
Wed 28/101:00 p.m.
SAT
-
BUF
2 stops8h 20m
Southwest
Deal found 27/7C$ 448
Mon 7/96:55 a.m.
BUF
-
SAT
1 stop5h 57m
United Airlines
Mon 14/91:00 p.m.
SAT
-
BUF
1 stop7h 07m
United Airlines
Deal found 25/7C$ 467
Mon 7/1212:32 p.m.
BUF
-
SAT
1 stop5h 55m
Delta
Thu 10/125:30 a.m.
SAT
-
BUF
1 stop4h 44m
Delta
Deal found 27/7C$ 502
Tue 22/96:59 p.m.
BUF
-
SAT
1 stop6h 09m
Delta
Thu 24/95:15 a.m.
SAT
-
BUF
1 stop5h 07m
Delta
Deal found 25/7C$ 509
Sun 1/1112:21 p.m.
BUF
-
SAT
1 stop5h 53m
Delta
Wed 11/115:30 a.m.
SAT
-
BUF
1 stop4h 44m
Delta
Deal found 26/7C$ 543
Fri 28/86:30 a.m.
BUF
-
SAT
2 stops9h 15m
Southwest
Tue 8/92:35 p.m.
SAT
-
BUF
1 stop5h 35m
Southwest
Deal found 23/7C$ 550
Thu 5/1112:22 p.m.
BUF
-
SAT
1 stop8h 17m
Delta
Sun 8/115:15 a.m.
SAT
-
BUF
1 stop5h 01m
Delta
Deal found 24/7C$ 557
Tue 22/92:35 p.m.
BUF
-
SAT
1 stop6h 35m
Southwest
Thu 24/92:05 p.m.
SAT
-
BUF
2 stops6h 50m
Southwest
Deal found 25/7C$ 564

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 28 July 2026.

Round-trip from

C$ 441

One-way from

C$ 216

Popular in

June

Cheapest in

August

Average price

C$ 676
Delta
  • Delta
  • 15/12-17/12
  • 2 total stops
  • 13h 37m total
  • Buffalo to San Antonio
Search Deals
Frontier
  • Frontier
  • 10/9
  • 1 total stop
  • 13h 08m total
  • Buffalo to San Antonio
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 28 July 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

Mon 17/8

5:58 p.m.-10:50 p.m.

1 stop5h 52m

San Antonio

Thu 27/8

12:55 p.m.-9:07 p.m.

1 stop7h 12m

C$ 441

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 20/10

4:25 p.m.-11:30 p.m.

2 stops8h 05m

San Antonio

Tue 27/10

5:15 a.m.-12:05 p.m.

1 stop5h 50m

C$ 448

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 15/12

8:05 a.m.-12:55 p.m.

1 stop5h 50m

San Antonio

Thu 17/12

2:50 p.m.-11:45 p.m.

2 stops7h 55m

C$ 448

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 21/10

7:00 p.m.-11:30 p.m.

1 stop5h 30m

San Antonio

Wed 28/10

1:00 p.m.-10:20 p.m.

2 stops8h 20m

C$ 448

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 21/10

4:25 p.m.-11:30 p.m.

2 stops8h 05m

San Antonio

Tue 27/10

7:30 a.m.-3:45 p.m.

2 stops7h 15m

C$ 456

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 7/9

6:55 a.m.-11:52 a.m.

1 stop5h 57m

San Antonio

Mon 14/9

1:00 p.m.-9:07 p.m.

1 stop7h 07m

C$ 467

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 22/9

6:59 p.m.-12:08 a.m.

1 stop6h 09m

San Antonio

Thu 24/9

5:15 a.m.-11:22 a.m.

1 stop5h 07m

C$ 509
Quickest round-trip

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 1/11

12:21 p.m.-5:14 p.m.

1 stop5h 53m

San Antonio

Wed 11/11

5:30 a.m.-11:14 a.m.

1 stop4h 44m

C$ 543

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 1/12

7:40 p.m.-12:28 a.m.

1 stop5h 48m

San Antonio

Sun 31/1

4:25 p.m.-11:55 p.m.

1 stop6h 30m

C$ 543
Cheapest one-way

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 5/10

6:59 p.m.-12:08 a.m.

1 stop6h 09m

C$ 221

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

Showing 1-10 of 18 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, August is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of C$ 492). Flying from Buffalo to San Antonio in June is currently the most expensive (average of C$ 719). 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?

Airfare is typical for this route at the moment.

Buffalo to San Antonio flights typically cost between C$ 370 and C$ 520 in October.
The cheapest round-trip price found within the last 5 days was C$ 441 on Delta (21 Oct-28 Oct).

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$ 441, United Airlines can have you in San Antonio from Buffalo in 5h 52m. 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, August is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of C$ 492). Flying from Buffalo to San Antonio in June is currently the most expensive (average of C$ 719). 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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