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Cheap flights from San Antonio to Buffalo from $123

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Buffalo departing on 2/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Antonio to Buffalo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:04 pm - 11:37 am
SAT
-
BUF
18h 33m
2 stops
Frontier Logo
11:25 am - 9:24 am
BUF
-
SAT
22h 59m
1 stop
$306Frontier
Sat, May 2 - Thu, May 7
Delta Logo
5:10 am - 11:44 am
SAT
-
BUF
5h 34m
1 stop
Delta Logo
7:38 pm - 12:38 am
BUF
-
SAT
6h 00m
1 stop
$313Delta
Tue, Mar 24 - Tue, Mar 31
American Airlines Logo
6:00 am - 12:14 pm
SAT
-
BUF
5h 14m
1 stop
American Airlines Logo
6:34 am - 2:18 pm
BUF
-
SAT
8h 44m
1 stop
$320American Airlines
Wed, Mar 18 - Wed, Mar 25
American Airlines Logo
6:00 am - 12:14 pm
SAT
-
BUF
5h 14m
1 stop
American Airlines Logo
4:04 pm - 11:59 pm
BUF
-
SAT
8h 55m
2 stops
$326American Airlines
Wed, Mar 18 - Wed, Mar 25
Delta Logo
5:10 am - 11:44 am
SAT
-
BUF
5h 34m
1 stop
Delta Logo
7:38 pm - 12:38 am
BUF
-
SAT
6h 00m
1 stop
$332Delta
Wed, Mar 25 - Mon, Mar 30
American Airlines Logo
6:00 am - 12:14 pm
SAT
-
BUF
5h 14m
1 stop
American Airlines Logo
4:04 pm - 11:59 pm
BUF
-
SAT
8h 55m
2 stops
$337American Airlines
Wed, Mar 25 - Mon, Mar 30
Multiple Airlines Logo
12:46 pm - 11:23 am
SAT
-
BUF
21h 37m
2 stops
Multiple Airlines Logo
3:58 pm - 10:18 pm
BUF
-
SAT
7h 20m
1 stop
$344Multiple Airlines
Thu, Apr 23 - Sun, Apr 26
American Airlines Logo
7:05 am - 3:29 pm
SAT
-
BUF
7h 24m
1 stop
American Airlines Logo
7:00 am - 12:42 pm
BUF
-
SAT
6h 42m
1 stop
$351American Airlines
Sat, May 2 - Thu, May 7
American Airlines Logo
6:00 am - 12:14 pm
SAT
-
BUF
5h 14m
1 stop
American Airlines Logo
4:04 pm - 11:59 pm
BUF
-
SAT
8h 55m
2 stops
$356American Airlines
Thu, Mar 26 - Mon, Mar 30
United Airlines Logo
7:30 am - 2:14 pm
SAT
-
BUF
5h 44m
1 stop
United Airlines Logo
7:00 am - 3:46 pm
BUF
-
SAT
9h 46m
2 stops
$359United Airlines
Tue, Mar 24 - Tue, Mar 31

Frontier flights from San Antonio to Buffalo

Our best Frontier deals on San Antonio to Buffalo flight tickets
Frontier
Mar 2
SAT1:52 pmSan Antonio
27h 29m
1 stop
BUF6:21 pmBuffalo
Mar 6
BUF9:25 pmBuffalo
23h 43m
1 stop
SAT8:08 pmSan Antonio
$262
Frontier
May 2
SAT4:04 pmSan Antonio
18h 33m
2 stops
BUF11:37 amBuffalo
May 7
BUF11:25 amBuffalo
22h 59m
1 stop
SAT9:24 amSan Antonio
$306
Frontier
Feb 27
SAT5:04 pmSan Antonio
17h 01m
1 stop
BUF11:05 amBuffalo
Feb 28
BUF6:40 pmBuffalo
22h 39m
2 stops
SAT4:19 pmSan Antonio
$460

American Airlines flights from San Antonio to Buffalo

Our best American Airlines deals on San Antonio to Buffalo flight tickets
American Airlines
Mar 18
SAT6:00 amSan Antonio
5h 14m
1 stop
BUF12:14 pmBuffalo
Mar 25
BUF6:34 amBuffalo
8h 44m
1 stop
SAT2:18 pmSan Antonio
$320
American Airlines
Mar 18
SAT6:00 amSan Antonio
5h 14m
1 stop
BUF12:14 pmBuffalo
Mar 25
BUF4:04 pmBuffalo
8h 55m
2 stops
SAT11:59 pmSan Antonio
$326
American Airlines
Mar 25
SAT6:00 amSan Antonio
5h 14m
1 stop
BUF12:14 pmBuffalo
Mar 30
BUF4:04 pmBuffalo
8h 55m
2 stops
SAT11:59 pmSan Antonio
$337

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Buffalo 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 22, 2026.
Use the filters below to find and compare flights from San Antonio to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Sat 5/2

4:04 pm-11:37 am

2 stops18h 33m

Buffalo

Thu 5/7

11:25 am-9:24 am

1 stop22h 59m

$306

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Tue 3/24

5:10 am-11:44 am

1 stop5h 34m

Buffalo

Tue 3/31

7:38 pm-12:38 am

1 stop6h 00m

$313

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 3/18

6:00 am-12:14 pm

1 stop5h 14m

Buffalo

Wed 3/25

6:34 am-2:18 pm

1 stop8h 44m

$320

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 3/18

6:00 am-12:14 pm

1 stop5h 14m

Buffalo

Wed 3/25

4:04 pm-11:59 pm

2 stops8h 55m

$326

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 3/25

5:10 am-11:44 am

1 stop5h 34m

Buffalo

Mon 3/30

7:38 pm-12:38 am

1 stop6h 00m

$332

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 3/25

6:00 am-12:14 pm

1 stop5h 14m

Buffalo

Mon 3/30

4:04 pm-11:59 pm

2 stops8h 55m

$337

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Thu 4/23

12:46 pm-11:23 am

2 stops21h 37m

Buffalo

Sun 4/26

3:58 pm-10:18 pm

1 stop7h 20m

$344

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Sat 5/2

7:05 am-3:29 pm

1 stop7h 24m

Buffalo

Thu 5/7

7:00 am-12:42 pm

1 stop6h 42m

$351

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Thu 3/26

6:00 am-12:14 pm

1 stop5h 14m

Buffalo

Mon 3/30

4:04 pm-11:59 pm

2 stops8h 55m

$356

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Tue 3/24

7:30 am-2:14 pm

1 stop5h 44m

Buffalo

Tue 3/31

7:00 am-3:46 pm

2 stops9h 46m

$359

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 Buffalo from

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

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 Buffalo?

If you aren’t able to travel during the month of August, then book flights to Buffalo from San Antonio during May instead. Flights to Buffalo in May, while not as cheap as those in August, still average around $335.

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

As of February 2026, prices for San Antonio to Buffalo flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from San Antonio to Buffalo

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

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

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

Fastest flight time

5h 07m

Direct flights

None
The fastest flight from San Antonio to Buffalo takes 5h 07m
There are no direct flights from San Antonio to Buffalo. There are no popular flight routes from San Antonio to Buffalo.
Search flight deals

  • How far is San Antonio to Buffalo by plane?

    San Antonio and Buffalo are 1428.7 mi apart from one another. A reasonable flight in good conditions will take 5h 07m.

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

    Prices for flights from San Antonio Airport to Buffalo Airport refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Buffalo Airport.

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

    The travel and health documents you'll need for your trip to Buffalo Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buffalo Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from San Antonio to Buffalo

Compare and see reviews for airlines that fly from San Antonio to Buffalo with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $125Free CancellationRating
7.4
9,341 reviews
Search United Airlines flights
American AirlinesPriceFrom $209Free CancellationRating
7.2
11,338 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,241 reviews
Search Delta flights
SouthwestPriceFrom $369Free CancellationRating
8.0
4,299 reviews
Search Southwest flights

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Cheektowaga
Amherst
Grand Island
Tonawanda
Williamsville
Orchard Park
Lockport
West Seneca
Bowmansville
East Aurora
Eden
Angola

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Antonio to Buffalo. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Buffalo from San Antonio with this policy.

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

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 San Antonio to Buffalo.

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

Yes. momondo can track prices for San Antonio to Buffalo flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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