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Cheap flights from San Antonio to Buffalo from $165

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 6/22. 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
4:26 pm - 7:06 pm
SAT
-
BUF
25h 40m
1 stop
Frontier Logo
7:57 pm - 3:41 pm
BUF
-
SAT
20h 44m
1 stop
$274Frontier
Mon, Aug 10 - Fri, Aug 14
Southwest Logo
2:00 pm - 9:25 pm
SAT
-
BUF
6h 25m
1 stop
Southwest Logo
4:25 pm - 9:35 pm
BUF
-
SAT
6h 10m
1 stop
$333Southwest
Wed, Jun 17 - Wed, Jun 24
Frontier Logo
9:51 am - 7:06 pm
SAT
-
BUF
8h 15m
1 stop
Frontier Logo
9:29 pm - 8:56 am
BUF
-
SAT
12h 27m
1 stop
$350Frontier
Fri, Jul 10 - Thu, Jul 16
Frontier Logo
7:51 pm - 7:12 pm
SAT
-
BUF
22h 21m
2 stops
Frontier Logo
9:02 pm - 3:37 pm
BUF
-
SAT
19h 35m
1 stop
$370Frontier
Tue, Jun 9 - Thu, Jun 18
Multiple Airlines Logo
9:55 am - 8:04 pm
SAT
-
BUF
9h 09m
1 stop
Multiple Airlines Logo
2:49 pm - 6:56 pm
BUF
-
SAT
29h 07m
2 stops
$373Multiple Airlines
Thu, Jun 4 - Mon, Jun 8
Delta Logo
4:00 pm - 12:03 am
SAT
-
BUF
7h 03m
1 stop
Delta Logo
7:27 pm - 12:33 am
BUF
-
SAT
6h 06m
1 stop
$390Delta
Wed, Jun 24 - Thu, Jun 25
Southwest Logo
2:00 pm - 9:25 pm
SAT
-
BUF
6h 25m
1 stop
Southwest Logo
11:00 am - 6:40 pm
BUF
-
SAT
8h 40m
2 stops
$391Southwest
Wed, Jun 17 - Wed, Jun 24
Southwest Logo
2:55 pm - 9:50 pm
SAT
-
BUF
5h 55m
1 stop
Southwest Logo
6:30 am - 2:45 pm
BUF
-
SAT
9h 15m
2 stops
$412Southwest
Mon, Aug 10 - Fri, Aug 14
Southwest Logo
3:15 pm - 10:40 pm
SAT
-
BUF
6h 25m
1 stop
Southwest Logo
6:00 pm - 1:10 am
BUF
-
SAT
8h 10m
1 stop
$420Southwest
Wed, Jul 22 - Sun, Jul 26
United Airlines Logo
1:00 pm - 9:07 pm
SAT
-
BUF
7h 07m
1 stop
United Airlines Logo
7:00 am - 11:52 am
BUF
-
SAT
5h 52m
1 stop
$423United Airlines
Tue, Aug 11 - Wed, Aug 12

Frontier flights from San Antonio to Buffalo

Our best Frontier deals on San Antonio to Buffalo flight tickets
Frontier
Jul 10
SAT9:51 amSan Antonio
8h 15m
1 stop
BUF7:06 pmBuffalo
Jul 16
BUF9:29 pmBuffalo
12h 27m
1 stop
SAT8:56 amSan Antonio
$350
Frontier
Jun 9
SAT7:51 pmSan Antonio
22h 21m
2 stops
BUF7:12 pmBuffalo
Jun 18
BUF9:02 pmBuffalo
19h 35m
1 stop
SAT3:37 pmSan Antonio
$370

Southwest flights from San Antonio to Buffalo

Our best Southwest deals on San Antonio to Buffalo flight tickets
Southwest
Jun 17
SAT2:00 pmSan Antonio
6h 25m
1 stop
BUF9:25 pmBuffalo
Jun 24
BUF4:25 pmBuffalo
6h 10m
1 stop
SAT9:35 pmSan Antonio
$333
Southwest
Sep 26
SAT6:00 amSan Antonio
10h 35m
1 stop
BUF5:35 pmBuffalo
Sep 28
BUF5:40 amBuffalo
9h 35m
2 stops
SAT2:15 pmSan Antonio
$378
Southwest
Jun 22
SAT3:40 pmSan Antonio
7h 30m
2 stops
BUF12:10 amBuffalo
Jun 24
BUF4:25 pmBuffalo
6h 10m
1 stop
SAT9:35 pmSan Antonio
$385

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 May 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

Cheapest round-trip

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Mon 8/10

4:26 pm-7:06 pm

1 stop25h 40m

Buffalo

Fri 8/14

7:57 pm-3:41 pm

1 stop20h 44m

$274
Quickest round-trip

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 6/17

2:00 pm-9:25 pm

1 stop6h 25m

Buffalo

Wed 6/24

4:25 pm-9:35 pm

1 stop6h 10m

$333

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Fri 7/10

9:51 am-7:06 pm

1 stop8h 15m

Buffalo

Thu 7/16

9:29 pm-8:56 am

1 stop12h 27m

$350

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Tue 6/9

7:51 pm-7:12 pm

2 stops22h 21m

Buffalo

Thu 6/18

9:02 pm-3:37 pm

1 stop19h 35m

$370

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Thu 6/4

9:55 am-8:04 pm

1 stop9h 09m

Buffalo

Mon 6/8

2:49 pm-6:56 pm

2 stops29h 07m

$373

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 6/24

4:00 pm-12:03 am

1 stop7h 03m

Buffalo

Thu 6/25

7:27 pm-12:33 am

1 stop6h 06m

$390

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 6/17

2:00 pm-9:25 pm

1 stop6h 25m

Buffalo

Wed 6/24

11:00 am-6:40 pm

2 stops8h 40m

$391

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Mon 8/10

2:55 pm-9:50 pm

1 stop5h 55m

Buffalo

Fri 8/14

6:30 am-2:45 pm

2 stops9h 15m

$412

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 7/22

3:15 pm-10:40 pm

1 stop6h 25m

Buffalo

Sun 7/26

6:00 pm-1:10 am

1 stop8h 10m

$420

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Tue 8/11

1:00 pm-9:07 pm

1 stop7h 07m

Buffalo

Wed 8/12

7:00 am-11:52 am

1 stop5h 52m

$423

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

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 January instead. Flights to Buffalo in January, while not as cheap as those in August, still average around $342.

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

As of May 2026, prices for San Antonio to Buffalo flights are approximately 120% 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 09m

Direct flights

None
The fastest flight from San Antonio to Buffalo takes 5h 09m
There are no direct flights from San Antonio to Buffalo. There are no popular flight routes from San Antonio to Buffalo.
Search flight deals

Frequently asked questions about flying from San Antonio to Buffalo

  • 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 09m.

  • 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
9,751 reviews
Search United Airlines flights
American AirlinesPriceFrom $209Free CancellationRating
7.1
11,644 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,449 reviews
Search Delta flights
SouthwestPriceFrom $369Free CancellationRating
7.9
4,278 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
Tonawanda
Grand Island
Williamsville
Orchard Park
Bowmansville
West Seneca
Lockport
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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