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Cheap flights from Buffalo to San Antonio from $75

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 3/8. 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.
Multiple Airlines Logo
7:44 pm - 12:27 pm
BUF
-
SAT
17h 43m
1 stop
Multiple Airlines Logo
6:00 pm - 12:13 pm
SAT
-
BUF
17h 13m
1 stop
$228Multiple Airlines
Fri, Apr 10 - Mon, Apr 13
Frontier Logo
9:47 pm - 1:55 pm
BUF
-
SAT
17h 08m
1 stop
Frontier Logo
2:13 pm - 10:49 am
SAT
-
BUF
19h 36m
1 stop
$254Frontier
Sun, Mar 22 - Sun, Mar 29
Multiple Airlines Logo
1:08 pm - 2:19 pm
BUF
-
SAT
26h 11m
2 stops
Multiple Airlines Logo
6:00 am - 7:13 pm
SAT
-
BUF
12h 13m
1 stop
$261Multiple Airlines
Tue, May 5 - Thu, May 7
Frontier Logo
11:44 am - 5:59 pm
BUF
-
SAT
7h 15m
1 stop
Frontier Logo
6:54 pm - 7:13 pm
SAT
-
BUF
23h 19m
1 stop
$297Frontier
Sat, Apr 25 - Sat, May 2
Delta Logo
5:44 pm - 10:55 pm
BUF
-
SAT
6h 11m
1 stop
Delta Logo
12:24 pm - 6:43 pm
SAT
-
BUF
5h 19m
1 stop
$313Delta
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
1:39 pm - 4:15 pm
BUF
-
SAT
27h 36m
1 stop
Multiple Airlines Logo
5:08 pm - 6:21 pm
SAT
-
BUF
24h 13m
2 stops
$315Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
7:00 am - 2:25 pm
BUF
-
SAT
8h 25m
2 stops
American Airlines Logo
5:19 am - 11:49 am
SAT
-
BUF
5h 30m
1 stop
$318American Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
9:47 pm - 1:55 pm
BUF
-
SAT
17h 08m
1 stop
Multiple Airlines Logo
10:22 am - 12:05 pm
SAT
-
BUF
24h 43m
2 stops
$319Multiple Airlines
Sun, Mar 22 - Sun, Mar 29
Delta Logo
6:45 pm - 12:37 am
BUF
-
SAT
6h 52m
1 stop
Delta Logo
5:10 am - 11:44 am
SAT
-
BUF
5h 34m
1 stop
$323Delta
Tue, Mar 3 - Tue, Mar 10
Southwest Logo
4:40 pm - 12:10 am
BUF
-
SAT
8h 30m
2 stops
Southwest Logo
5:25 am - 4:00 pm
SAT
-
BUF
9h 35m
1 stop
$324Southwest
Wed, Mar 11 - Wed, Mar 18

Frontier flights from Buffalo to San Antonio

Our best Frontier deals on Buffalo to San Antonio flight tickets
Frontier
Mar 22
BUF9:47 pmBuffalo
17h 08m
1 stop
SAT1:55 pmSan Antonio
Mar 29
SAT2:13 pmSan Antonio
19h 36m
1 stop
BUF10:49 amBuffalo
$254
Frontier
Feb 21
BUF12:20 pmBuffalo
28h 59m
1 stop
SAT4:19 pmSan Antonio
Feb 23
SAT1:57 pmSan Antonio
27h 24m
1 stop
BUF6:21 pmBuffalo
$284
Frontier
Apr 25
BUF11:44 amBuffalo
7h 15m
1 stop
SAT5:59 pmSan Antonio
May 2
SAT6:54 pmSan Antonio
23h 19m
1 stop
BUF7:13 pmBuffalo
$297

Delta flights from Buffalo to San Antonio

Our best Delta deals on Buffalo to San Antonio flight tickets
Delta
Mar 3
BUF5:44 pmBuffalo
6h 11m
1 stop
SAT10:55 pmSan Antonio
Mar 10
SAT12:24 pmSan Antonio
5h 19m
1 stop
BUF6:43 pmBuffalo
$313
Delta
Mar 3
BUF6:45 pmBuffalo
6h 52m
1 stop
SAT12:37 amSan Antonio
Mar 10
SAT5:10 amSan Antonio
5h 34m
1 stop
BUF11:44 amBuffalo
$323
Delta
Mar 2
BUF5:44 pmBuffalo
6h 11m
1 stop
SAT10:55 pmSan Antonio
Mar 11
SAT5:10 amSan Antonio
5h 34m
1 stop
BUF11:44 amBuffalo
$342

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 February 12, 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

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 4/10

7:44 pm-12:27 pm

1 stop17h 43m

San Antonio

Mon 4/13

6:00 pm-12:13 pm

1 stop17h 13m

$228

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 3/22

9:47 pm-1:55 pm

1 stop17h 08m

San Antonio

Sun 3/29

2:13 pm-10:49 am

1 stop19h 36m

$254

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 5/5

1:08 pm-2:19 pm

2 stops26h 11m

San Antonio

Thu 5/7

6:00 am-7:13 pm

1 stop12h 13m

$261

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 4/25

11:44 am-5:59 pm

1 stop7h 15m

San Antonio

Sat 5/2

6:54 pm-7:13 pm

1 stop23h 19m

$297

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 3/3

5:44 pm-10:55 pm

1 stop6h 11m

San Antonio

Tue 3/10

12:24 pm-6:43 pm

1 stop5h 19m

$313

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 2/26

1:39 pm-4:15 pm

1 stop27h 36m

San Antonio

Mon 3/2

5:08 pm-6:21 pm

2 stops24h 13m

$315

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 3/3

7:00 am-2:25 pm

2 stops8h 25m

San Antonio

Tue 3/10

5:19 am-11:49 am

1 stop5h 30m

$318

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 3/22

9:47 pm-1:55 pm

1 stop17h 08m

San Antonio

Sun 3/29

10:22 am-12:05 pm

2 stops24h 43m

$319

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 3/3

6:45 pm-12:37 am

1 stop6h 52m

San Antonio

Tue 3/10

5:10 am-11:44 am

1 stop5h 34m

$323

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 3/11

4:40 pm-12:10 am

2 stops8h 30m

San Antonio

Wed 3/18

5:25 am-4:00 pm

1 stop9h 35m

$324

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 cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of September, then book flights to San Antonio from Buffalo during January instead. Flights to San Antonio in January, while not as cheap as those in September, still average around $350.

How far in advance should I book a flight 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 $397 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 February 2026, prices for Buffalo to San Antonio flights are approximately 4% 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

6h 15m

Direct flights

None
The fastest flight from Buffalo to San Antonio takes 6h 15m
There are no direct flights from Buffalo to San Antonio. There are no popular flight routes from Buffalo to San Antonio.
Search flight deals

  • 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 6h 15m.

  • 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
7.2
11,267 reviews
Search American Airlines flights
DeltaPriceFrom $280Free CancellationRating
7.9
8,177 reviews
Search Delta flights
SouthwestPriceFrom $329Free CancellationRating
8.0
4,280 reviews
Search Southwest flights
United AirlinesPriceFrom $335Free CancellationRating
7.4
9,276 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.

An easier way to manage your San Antonio trip

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