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Cheap flights from Buffalo to San Antonio from $89

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 12/6. 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 Buffalo to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:53 pm - 10:03 amBUF-SAT
13h 10m1 stop
Multiple Airlines Logo
8:33 pm - 5:52 pmSAT-BUF
20h 19m1 stop
$205Multiple Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24
Multiple Airlines Logo
11:40 am - 6:42 pmBUF-SAT
8h 02m1 stop
Multiple Airlines Logo
8:33 pm - 4:20 pmSAT-BUF
18h 47m1 stop
$206Multiple Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
Delta Logo
12:10 pm - 6:26 pmBUF-SAT
7h 16m1 stop
Delta Logo
4:35 pm - 10:58 pmSAT-BUF
5h 23m1 stop
$275Delta
Find Deal
Sat, Dec 6 - Tue, Dec 9
Delta Logo
6:00 am - 1:26 pmBUF-SAT
8h 26m1 stop
Delta Logo
5:20 am - 11:51 amSAT-BUF
5h 31m1 stop
$294Delta
Find Deal
Thu, Feb 26 - Sat, Feb 28
American Airlines Logo
11:39 am - 11:29 pmBUF-SAT
12h 50m1 stop
American Airlines Logo
6:19 am - 9:17 pmSAT-BUF
13h 58m1 stop
$297American Airlines
Find Deal
Sun, Mar 1 - Wed, Mar 4
American Airlines Logo
7:04 am - 1:13 pmBUF-SAT
7h 09m1 stop
American Airlines Logo
6:20 pm - 9:44 amSAT-BUF
14h 24m1 stop
$307American Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
United Airlines Logo
3:00 pm - 8:15 pmBUF-SAT
6h 15m1 stop
United Airlines Logo
5:20 am - 2:22 pmSAT-BUF
8h 02m2 stops
$322United Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Southwest Logo
2:05 pm - 10:15 pmBUF-SAT
9h 10m1 stop
Southwest Logo
5:45 am - 12:05 pmSAT-BUF
5h 20m1 stop
$343Southwest
Find Deal
Wed, Nov 12 - Wed, Nov 19
United Airlines Logo
5:40 pm - 11:00 pmBUF-SAT
6h 20m1 stop
United Airlines Logo
5:20 am - 2:22 pmSAT-BUF
8h 02m2 stops
$360United Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 9
Southwest Logo
6:15 am - 1:35 pmBUF-SAT
8h 20m2 stops
Southwest Logo
6:50 am - 1:25 pmSAT-BUF
5h 35m1 stop
$374Southwest
Find Deal
Fri, Dec 5 - Mon, Dec 8

Delta flights from Buffalo to San Antonio

Our best Delta deals on Buffalo to San Antonio flight tickets
Delta
Dec 6
BUF12:10 pmBuffalo
7h 16m
1 stop
SAT6:26 pmSan Antonio
Dec 9
SAT4:35 pmSan Antonio
5h 23m
1 stop
BUF10:58 pmBuffalo
$275
Find similar
Delta
Feb 26
BUF6:00 amBuffalo
8h 26m
1 stop
SAT1:26 pmSan Antonio
Feb 28
SAT5:20 amSan Antonio
5h 31m
1 stop
BUF11:51 amBuffalo
$294
Find similar
Delta
Dec 5
BUF5:51 pmBuffalo
6h 06m
1 stop
SAT10:57 pmSan Antonio
Dec 9
SAT5:00 pmSan Antonio
5h 59m
1 stop
BUF11:59 pmBuffalo
$296
Find similar

American Airlines flights from Buffalo to San Antonio

Our best American Airlines deals on Buffalo to San Antonio flight tickets
American Airlines
Mar 1
BUF11:39 amBuffalo
12h 50m
1 stop
SAT11:29 pmSan Antonio
Mar 4
SAT6:19 amSan Antonio
13h 58m
1 stop
BUF9:17 pmBuffalo
$297
Find similar
American Airlines
Dec 5
BUF7:04 amBuffalo
7h 09m
1 stop
SAT1:13 pmSan Antonio
Dec 8
SAT6:20 pmSan Antonio
14h 24m
1 stop
BUF9:44 amBuffalo
$307
Find similar
American Airlines
Mar 1
BUF11:39 amBuffalo
12h 50m
1 stop
SAT11:29 pmSan Antonio
Mar 4
SAT6:39 amSan Antonio
7h 49m
2 stops
BUF3:28 pmBuffalo
$309
Find similar

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 October 23, 2025.
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

Mon 11/17

9:53 pm-10:03 am

1 stop13h 10m

San Antonio

Mon 11/24

8:33 pm-5:52 pm

1 stop20h 19m

$205

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 11/20

11:40 am-6:42 pm

1 stop8h 02m

San Antonio

Sun 11/23

8:33 pm-4:20 pm

1 stop18h 47m

$206

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 12/6

12:10 pm-6:26 pm

1 stop7h 16m

San Antonio

Tue 12/9

4:35 pm-10:58 pm

1 stop5h 23m

$275

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 2/26

6:00 am-1:26 pm

1 stop8h 26m

San Antonio

Sat 2/28

5:20 am-11:51 am

1 stop5h 31m

$294

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 3/1

11:39 am-11:29 pm

1 stop12h 50m

San Antonio

Wed 3/4

6:19 am-9:17 pm

1 stop13h 58m

$297

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 12/5

7:04 am-1:13 pm

1 stop7h 09m

San Antonio

Mon 12/8

6:20 pm-9:44 am

1 stop14h 24m

$307

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 12/5

3:00 pm-8:15 pm

1 stop6h 15m

San Antonio

Mon 12/8

5:20 am-2:22 pm

2 stops8h 02m

$322

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 11/12

2:05 pm-10:15 pm

1 stop9h 10m

San Antonio

Wed 11/19

5:45 am-12:05 pm

1 stop5h 20m

$343

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 12/6

5:40 pm-11:00 pm

1 stop6h 20m

San Antonio

Tue 12/9

5:20 am-2:22 pm

2 stops8h 02m

$360

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 12/5

6:15 am-1:35 pm

2 stops8h 20m

San Antonio

Mon 12/8

6:50 am-1:25 pm

1 stop5h 35m

$374

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 November instead. Flights to San Antonio in November, while not as cheap as those in September, still average around $384.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Wednesday when prices can be found for as low as $372. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $582.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Buffalo to San Antonio in the evening for as low as $397. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly at noon, with an average ticket price of $484. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $416 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 $230 on momondo.

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

As of October 2025, prices for Buffalo to San Antonio flights are approximately 7% 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

Direct flights

None
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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  • 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 06m.

  • 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
11,032 reviews
Search American Airlines flights
DeltaPriceFrom $280Free CancellationRating
7.9
7,982 reviews
Search Delta flights
SouthwestPriceFrom $331Free CancellationRating
8.0
4,236 reviews
Search Southwest flights
United AirlinesPriceFrom $335Free CancellationRating
7.4
8,995 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
Schertz
Pleasanton

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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