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Cheap flights from Buffalo to San Antonio from $131

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to San Antonio departing on 10/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Buffalo to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:02 pm - 3:41 pm
BUF
-
SAT
19h 39m
1 stop
Frontier Logo
4:26 pm - 7:06 pm
SAT
-
BUF
25h 40m
1 stop
$320Frontier
Sun, Jul 5 - Mon, Jul 13
United Airlines Logo
6:04 pm - 10:58 pm
BUF
-
SAT
5h 54m
1 stop
United Airlines Logo
1:20 pm - 9:03 pm
SAT
-
BUF
6h 43m
1 stop
$333United Airlines
Wed, Jun 17 - Tue, Jun 23
Southwest Logo
12:35 pm - 5:55 pm
BUF
-
SAT
6h 20m
2 stops
Southwest Logo
2:05 pm - 9:05 pm
SAT
-
BUF
6h 00m
1 stop
$338Southwest
Tue, Aug 25 - Wed, Sep 2
United Airlines Logo
10:30 am - 4:31 pm
BUF
-
SAT
7h 01m
1 stop
United Airlines Logo
7:00 am - 2:18 pm
SAT
-
BUF
6h 18m
1 stop
$350United Airlines
Tue, Aug 25 - Sat, Aug 29
Frontier Logo
7:57 pm - 3:41 pm
BUF
-
SAT
20h 44m
1 stop
Frontier Logo
4:26 pm - 7:06 pm
SAT
-
BUF
25h 40m
1 stop
$352Frontier
Fri, Jul 17 - Mon, Jul 20
Frontier Logo
7:57 pm - 3:37 pm
BUF
-
SAT
20h 40m
1 stop
Frontier Logo
4:22 pm - 7:12 pm
SAT
-
BUF
25h 50m
1 stop
$353Frontier
Fri, Jun 12 - Mon, Jun 15
United Airlines Logo
6:04 pm - 10:58 pm
BUF
-
SAT
5h 54m
1 stop
United Airlines Logo
9:37 am - 9:03 pm
SAT
-
BUF
10h 26m
2 stops
$355United Airlines
Tue, Jun 16 - Sat, Jun 20
American Airlines Logo
5:25 am - 12:55 pm
BUF
-
SAT
8h 30m
1 stop
American Airlines Logo
7:26 am - 2:21 pm
SAT
-
BUF
5h 55m
1 stop
$356American Airlines
Thu, Jun 11 - Wed, Jun 17
Southwest Logo
12:35 pm - 5:55 pm
BUF
-
SAT
6h 20m
2 stops
Southwest Logo
9:25 am - 5:45 pm
SAT
-
BUF
7h 20m
2 stops
$360Southwest
Tue, Aug 25 - Wed, Sep 2
American Airlines Logo
12:17 pm - 7:40 pm
BUF
-
SAT
8h 23m
1 stop
American Airlines Logo
4:40 pm - 11:01 pm
SAT
-
BUF
5h 21m
1 stop
$367American Airlines
Sat, Jul 25 - Sat, Aug 22

American Airlines flights from Buffalo to San Antonio

Our best American Airlines deals on Buffalo to San Antonio flight tickets
American Airlines
Jun 11
BUF5:25 amBuffalo
8h 30m
1 stop
SAT12:55 pmSan Antonio
Jun 17
SAT7:26 amSan Antonio
5h 55m
1 stop
BUF2:21 pmBuffalo
$356
American Airlines
Jul 25
BUF12:17 pmBuffalo
8h 23m
1 stop
SAT7:40 pmSan Antonio
Aug 22
SAT4:40 pmSan Antonio
5h 21m
1 stop
BUF11:01 pmBuffalo
$367
American Airlines
Jun 11
BUF4:47 pmBuffalo
7h 18m
1 stop
SAT11:05 pmSan Antonio
Jun 18
SAT1:40 pmSan Antonio
9h 14m
1 stop
BUF11:54 pmBuffalo
$397

Southwest flights from Buffalo to San Antonio

Our best Southwest deals on Buffalo to San Antonio flight tickets
Southwest
Aug 25
BUF12:35 pmBuffalo
6h 20m
2 stops
SAT5:55 pmSan Antonio
Sep 2
SAT2:05 pmSan Antonio
6h 00m
1 stop
BUF9:05 pmBuffalo
$338
Southwest
Aug 25
BUF12:35 pmBuffalo
6h 20m
2 stops
SAT5:55 pmSan Antonio
Sep 2
SAT9:25 amSan Antonio
7h 20m
2 stops
BUF5:45 pmBuffalo
$360
Southwest
Jul 14
BUF7:10 pmBuffalo
5h 30m
1 stop
SAT11:40 pmSan Antonio
Jul 22
SAT2:00 pmSan Antonio
7h 40m
2 stops
BUF10:40 pmBuffalo
$383

momondo 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, momondo users made 832,500 searches. Data last updated May 17, 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

Sun 7/5

9:02 pm-3:41 pm

1 stop19h 39m

San Antonio

Mon 7/13

4:26 pm-7:06 pm

1 stop25h 40m

$320

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 6/17

6:04 pm-10:58 pm

1 stop5h 54m

San Antonio

Tue 6/23

1:20 pm-9:03 pm

1 stop6h 43m

$333
Quickest round-trip

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 8/25

12:35 pm-5:55 pm

2 stops6h 20m

San Antonio

Wed 9/2

2:05 pm-9:05 pm

1 stop6h 00m

$338

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 8/25

10:30 am-4:31 pm

1 stop7h 01m

San Antonio

Sat 8/29

7:00 am-2:18 pm

1 stop6h 18m

$350

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 7/17

7:57 pm-3:41 pm

1 stop20h 44m

San Antonio

Mon 7/20

4:26 pm-7:06 pm

1 stop25h 40m

$352

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 6/12

7:57 pm-3:37 pm

1 stop20h 40m

San Antonio

Mon 6/15

4:22 pm-7:12 pm

1 stop25h 50m

$353

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 6/16

6:04 pm-10:58 pm

1 stop5h 54m

San Antonio

Sat 6/20

9:37 am-9:03 pm

2 stops10h 26m

$355

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 6/11

5:25 am-12:55 pm

1 stop8h 30m

San Antonio

Wed 6/17

7:26 am-2:21 pm

1 stop5h 55m

$356

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 8/25

12:35 pm-5:55 pm

2 stops6h 20m

San Antonio

Wed 9/2

9:25 am-5:45 pm

2 stops7h 20m

$360

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 7/25

12:17 pm-7:40 pm

1 stop8h 23m

San Antonio

Sat 8/22

4:40 pm-11:01 pm

1 stop5h 21m

$367

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from Buffalo to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Buffalo and San Antonio?

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of January, then book flights to San Antonio from Buffalo during October instead. Flights to San Antonio in October, while not as cheap as those in January, still average around $360.

How far in advance should I book a flight from Buffalo to San Antonio?

You are more likely to see cheaper flights to San Antonio from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $415 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Buffalo for as low as $338 on momondo.

How have Buffalo to San Antonio flight prices changed over time?

As of May 2026, prices for Buffalo to San Antonio flights are approximately 49% more expensive when compared to flights at the same time last year.

When to book flights from Buffalo to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buffalo to San Antonio (BUF to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to San Antonio

Fastest flight time

5h 05m

Direct flights

None
The fastest flight from Buffalo to San Antonio takes 5h 05m
There are no direct flights from Buffalo to San Antonio. There are no popular flight routes from Buffalo to San Antonio.
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Frequently asked questions about flying from Buffalo to San Antonio

  • How far is Buffalo to San Antonio by plane?

    San Antonio is 1428.7 mi away from Buffalo. A reasonable flight in good conditions will take 5h 05m.

  • When did momondo last update prices for flights from Buffalo Airport to San Antonio Airport?

    Prices for flights from Buffalo Airport to San Antonio Airport are updated daily.

  • How many operators does momondo search for flights from Buffalo Airport to San Antonio Airport?

  • How old do you have to be to fly from Buffalo Airport to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Buffalo to San Antonio?

Best airlines flying from Buffalo to San Antonio

Compare and see reviews for airlines that fly from Buffalo to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $262Free CancellationRating
7.1
11,665 reviews
Search American Airlines flights
DeltaPriceFrom $280Free CancellationRating
7.9
8,457 reviews
Search Delta flights
SouthwestPriceFrom $312Free CancellationRating
8.0
4,294 reviews
Search Southwest flights
United AirlinesPriceFrom $331Free CancellationRating
7.4
9,730 reviews
Search United Airlines flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Boerne
Pleasanton
Schertz

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to San Antonio?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Buffalo to San Antonio for you.

Can I find flights from Buffalo to San Antonio with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Buffalo to San Antonio flights to just show those with flexible booking policies.

How can momondo help me find flights from Buffalo to San Antonio?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Buffalo to San Antonio.

I’m not ready to book a flight from Buffalo to San Antonio right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Antonio from Buffalo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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