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Cheap flights from San Antonio to Buffalo from $137

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 3/29. 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 San Antonio to Buffalo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
3:14 pm - 12:13 pm
SAT
-
BUF
19h 59m
2 stops
Frontier Logo
11:25 am - 9:24 am
BUF
-
SAT
22h 59m
1 stop
$276Frontier
Thu, May 7 - Sun, May 10
Multiple Airlines Logo
2:12 pm - 8:47 am
SAT
-
BUF
17h 35m
1 stop
Multiple Airlines Logo
11:25 am - 9:24 am
BUF
-
SAT
22h 59m
1 stop
$299Multiple Airlines
Thu, May 7 - Sun, May 10
Multiple Airlines Logo
2:12 pm - 7:13 pm
SAT
-
BUF
28h 01m
1 stop
Multiple Airlines Logo
1:08 pm - 9:24 am
BUF
-
SAT
21h 16m
2 stops
$316Multiple Airlines
Wed, May 6 - Sun, May 10
Multiple Airlines Logo
2:12 pm - 7:13 pm
SAT
-
BUF
28h 01m
1 stop
Multiple Airlines Logo
1:08 pm - 11:51 pm
BUF
-
SAT
11h 43m
2 stops
$326Multiple Airlines
Wed, May 6 - Sat, May 9
Multiple Airlines Logo
2:12 pm - 9:57 am
SAT
-
BUF
18h 45m
1 stop
Multiple Airlines Logo
12:32 pm - 3:53 pm
BUF
-
SAT
52h 21m
2 stops
$335Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
United Airlines Logo
2:00 pm - 9:01 pm
SAT
-
BUF
6h 01m
1 stop
United Airlines Logo
2:45 pm - 8:35 pm
BUF
-
SAT
6h 50m
1 stop
$347United Airlines
Wed, May 6 - Sat, May 9
Southwest Logo
12:30 pm - 8:25 pm
SAT
-
BUF
6h 55m
2 stops
Southwest Logo
5:20 pm - 10:15 pm
BUF
-
SAT
5h 55m
1 stop
$352Southwest
Tue, May 12 - Mon, May 18
United Airlines Logo
2:25 pm - 11:33 pm
SAT
-
BUF
8h 08m
2 stops
United Airlines Logo
6:10 am - 1:16 pm
BUF
-
SAT
8h 06m
2 stops
$357United Airlines
Wed, May 6 - Sat, May 9
Southwest Logo
2:35 pm - 8:25 pm
SAT
-
BUF
4h 50m
1 stop
Southwest Logo
7:50 pm - 12:30 am
BUF
-
SAT
5h 40m
1 stop
$370Southwest
Wed, May 6 - Sun, May 10
Multiple Airlines Logo
10:22 am - 12:17 pm
SAT
-
BUF
24h 55m
2 stops
Multiple Airlines Logo
7:31 pm - 12:27 pm
BUF
-
SAT
17h 56m
1 stop
$371Multiple Airlines
Sat, Apr 4 - Sat, Apr 11

United Airlines flights from San Antonio to Buffalo

Our best United Airlines deals on San Antonio to Buffalo flight tickets
United Airlines
May 6
SAT2:00 pmSan Antonio
6h 01m
1 stop
BUF9:01 pmBuffalo
May 9
BUF2:45 pmBuffalo
6h 50m
1 stop
SAT8:35 pmSan Antonio
$347
United Airlines
May 6
SAT2:25 pmSan Antonio
8h 08m
2 stops
BUF11:33 pmBuffalo
May 9
BUF6:10 amBuffalo
8h 06m
2 stops
SAT1:16 pmSan Antonio
$357
United Airlines
May 19
SAT2:25 pmSan Antonio
8h 08m
2 stops
BUF11:33 pmBuffalo
May 22
BUF7:00 amBuffalo
6h 12m
1 stop
SAT12:12 pmSan Antonio
$392

Delta flights from San Antonio to Buffalo

Our best Delta deals on San Antonio to Buffalo flight tickets
Delta
May 18
SAT4:11 pmSan Antonio
6h 48m
1 stop
BUF11:59 pmBuffalo
May 21
BUF6:25 amBuffalo
5h 29m
1 stop
SAT10:54 amSan Antonio
$387
Delta
Apr 2
SAT4:29 pmSan Antonio
6h 17m
1 stop
BUF11:46 pmBuffalo
Apr 4
BUF6:08 pmBuffalo
7h 29m
1 stop
SAT12:37 amSan Antonio
$393
Delta
May 18
SAT4:11 pmSan Antonio
6h 48m
1 stop
BUF11:59 pmBuffalo
May 21
BUF7:40 pmBuffalo
6h 04m
1 stop
SAT12:44 amSan Antonio
$407

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 March 10, 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

Cheapest round-trip

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Thu 5/7

3:14 pm-12:13 pm

2 stops19h 59m

Buffalo

Sun 5/10

11:25 am-9:24 am

1 stop22h 59m

$276

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Thu 5/7

2:12 pm-8:47 am

1 stop17h 35m

Buffalo

Sun 5/10

11:25 am-9:24 am

1 stop22h 59m

$299

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 5/6

2:12 pm-7:13 pm

1 stop28h 01m

Buffalo

Sun 5/10

1:08 pm-9:24 am

2 stops21h 16m

$316

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 5/6

2:12 pm-7:13 pm

1 stop28h 01m

Buffalo

Sat 5/9

1:08 pm-11:51 pm

2 stops11h 43m

$326

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Thu 4/16

2:12 pm-9:57 am

1 stop18h 45m

Buffalo

Mon 4/20

12:32 pm-3:53 pm

2 stops52h 21m

$335

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 5/6

2:00 pm-9:01 pm

1 stop6h 01m

Buffalo

Sat 5/9

2:45 pm-8:35 pm

1 stop6h 50m

$347

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Tue 5/12

12:30 pm-8:25 pm

2 stops6h 55m

Buffalo

Mon 5/18

5:20 pm-10:15 pm

1 stop5h 55m

$352

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 5/6

2:25 pm-11:33 pm

2 stops8h 08m

Buffalo

Sat 5/9

6:10 am-1:16 pm

2 stops8h 06m

$357
Quickest round-trip

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 5/6

2:35 pm-8:25 pm

1 stop4h 50m

Buffalo

Sun 5/10

7:50 pm-12:30 am

1 stop5h 40m

$370

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Sat 4/4

10:22 am-12:17 pm

2 stops24h 55m

Buffalo

Sat 4/11

7:31 pm-12:27 pm

1 stop17h 56m

$371

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 $336.

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

As of March 2026, prices for San Antonio to Buffalo flights are approximately 29% 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 20m

Direct flights

None
The fastest flight from San Antonio to Buffalo takes 5h 20m
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 20m.

  • 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
9,409 reviews
Search United Airlines flights
American AirlinesPriceFrom $209Free CancellationRating
7.1
11,414 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,276 reviews
Search Delta flights
SouthwestPriceFrom $369Free CancellationRating
8.0
4,317 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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