$91 Cheap Flights from San Antonio (SAT) to Buffalo (BUF)

View $91 flight on Thu, Dec 11, 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Buffalo Niagara Intl. Airport (BUF)

Cheap Flights from San Antonio to Buffalo (SAT-BUF)

Prices were available within the past 7 days and start at $91 for one-way flights and $160 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Dec 11 - Sat, Dec 13
SAT
San Antonio
BUF
Buffalo
$160 Roundtrip, just found
$160
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Dec 11 from San Antonio to Buffalo, returning Sat, Dec 13, priced at $160 just found
Frontier Airlines
Sat, Nov 8 - Sat, Dec 6
SAT
San Antonio
BUF
Buffalo
$162 Roundtrip, found 2 days ago
$162
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Nov 8 from San Antonio to Buffalo, returning Sat, Dec 6, priced at $162 found 2 days ago
Frontier Airlines
Sun, Dec 7 - Sat, Dec 13
SAT
San Antonio
BUF
Buffalo
$172 Roundtrip, found 2 days ago
$172
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Dec 7 from San Antonio to Buffalo, returning Sat, Dec 13, priced at $172 found 2 days ago
Frontier Airlines
Sun, Dec 7 - Sat, Dec 13
SAT
San Antonio
BUF
Buffalo
$192 Roundtrip, found 4 days ago
$192
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sun, Dec 7 from San Antonio to Buffalo, returning Sat, Dec 13, priced at $192 found 4 days ago
Frontier Airlines
Sat, Nov 8 - Fri, Nov 14
SAT
San Antonio
BUF
Buffalo
$204 Roundtrip, found 4 hours ago
$204
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Nov 8 from San Antonio to Buffalo, returning Fri, Nov 14, priced at $204 found 4 hours ago
Frontier Airlines
Sat, Nov 8 - Sat, Dec 6
SAT
San Antonio
BUF
Buffalo
$210 Roundtrip, found 2 days ago
$210
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Nov 8 from San Antonio to Buffalo, returning Sat, Dec 6, priced at $210 found 2 days ago
Southwest Airlines
Wed, Dec 24 - Thu, Jan 1
SAT
San Antonio
BUF
Buffalo
$254 Roundtrip, found 5 days ago
$254
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Dec 24 from San Antonio to Buffalo, returning Thu, Jan 1, priced at $254 found 5 days ago
American Airlines
Wed, Feb 11 - Sat, Feb 14
SAT
San Antonio
BUF
Buffalo
$273 Roundtrip, found 5 days ago
$273
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Feb 11 from San Antonio to Buffalo, returning Sat, Feb 14, priced at $273 found 5 days ago
Delta
Wed, Dec 24 - Tue, Jan 6
SAT
San Antonio
BUF
Buffalo
$275 Roundtrip, found 5 days ago
$275
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Dec 24 from San Antonio to Buffalo, returning Tue, Jan 6, priced at $275 found 5 days ago
United
Thu, Nov 27 - Wed, Dec 3
SAT
San Antonio
BUF
Buffalo
$308 Roundtrip, found 3 hours ago
$308
Roundtrip
found 3 hours ago
Select United flight, departing Thu, Nov 27 from San Antonio to Buffalo, returning Wed, Dec 3, priced at $308 found 3 hours ago

Find the cheapest month to fly from San Antonio (SAT) to Buffalo (BUF)

January is typically the cheapest month to fly

From $138 - $746 per traveler.

Alternative airports near Buffalo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $547
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $547

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF) cost?
Secure a cheap one-way flight from $91 or cheap return flight from $160 from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF)?
Traveling in December may help you find better deals, as it's the cheapest month for flights between SAT and BUF. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF)?
To find the cheapest airline flying from SAT to BUF, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF)?
There aren't any daily nonstop flights available from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from SAT to BUF?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF)?
Book a flight from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF) that takes off before 3 PM to reduce the likelihood of delays. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Waiting until right before your break to book a ticket from SAT to BUF generally means paying more. Although you may find some last-minute offers, they aren't always guaranteed. Keep your travel plans flexible for a better chance of getting a bargain.
Is it cheaper to book a SAT to BUF flight and hotel package?
Compared with arranging hotels and flights separately, booking a SAT to BUF flight and hotel package with Expedia could result in significant savings. Better still, having everything in one convenient place takes the hassle out of planning your trip. Just secure your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Buffalo Niagara Intl. Airport (BUF)?
If you reserved your SAT to BUF flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$160
Distance
1431 mi
Average flight time
5 hours 5 mins

Book with confidence

San Antonio to Buffalo Flights

The cheapest times to fly from San Antonio to Buffalo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Antonio to Buffalo are during the month of December. You can find some of the cheapest flights from San Antonio to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Buffalo

Sunday is one of the best days to book for cheap flights from San Antonio to Buffalo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Antonio to Buffalo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Antonio to Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $91 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Antonio to Buffalo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Antonio to Buffalo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Antonio to Buffalo Flights

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*Available to One Key members.