$134 Cheap Flights from San Antonio (SAT) to Buffalo (BUF)

View $134 flight on Tue, Aug 11, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $134 for one-way flights and $280 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Sep 16 - Sat, Sep 19
SAT
San Antonio
BUF
Buffalo
$280 Roundtrip, found 3 days ago
$280
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 16 from San Antonio to Buffalo, returning Sat, Sep 19, priced at $280 found 3 days ago
American Airlines
Wed, Sep 16 - Sat, Sep 19
SAT
San Antonio
BUF
Buffalo
$287 Roundtrip, found 3 days ago
$287
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 16 from San Antonio to Buffalo, returning Sat, Sep 19, priced at $287 found 3 days ago
American Airlines
Wed, Sep 16 - Sat, Sep 19
SAT
San Antonio
BUF
Buffalo
$294 Roundtrip, found 3 days ago
$294
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 16 from San Antonio to Buffalo, returning Sat, Sep 19, priced at $294 found 3 days ago
United
Mon, Aug 24 - Mon, Aug 31
SAT
San Antonio
BUF
Buffalo
$298 Roundtrip, found 1 day ago
$298
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 24 from San Antonio to Buffalo, returning Mon, Aug 31, priced at $298 found 1 day ago
American Airlines
Tue, Jul 21 - Tue, Sep 1
SAT
San Antonio
BUF
Buffalo
$300 Roundtrip, found 3 days ago
$300
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Jul 21 from San Antonio to Buffalo, returning Tue, Sep 1, priced at $300 found 3 days ago
American Airlines
Wed, Sep 16 - Sat, Sep 19
SAT
San Antonio
BUF
Buffalo
$303 Roundtrip, found 3 days ago
$303
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 16 from San Antonio to Buffalo, returning Sat, Sep 19, priced at $303 found 3 days ago
Frontier Airlines
Sat, Aug 8 - Sun, Aug 9
SAT
San Antonio
BUF
Buffalo
$304 Roundtrip, found 14 hours ago
$304
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Sat, Aug 8 from San Antonio to Buffalo, returning Sun, Aug 9, priced at $304 found 14 hours ago
Frontier Airlines
Mon, Jul 20 - Sun, Jul 26
SAT
San Antonio
BUF
Buffalo
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Jul 20 from San Antonio to Buffalo, returning Sun, Jul 26, priced at $309 found 3 days ago
Delta
Wed, Jul 8 - Sun, Jul 12
SAT
San Antonio
BUF
Buffalo
$327 Roundtrip, found 5 hours ago
$327
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Jul 8 from San Antonio to Buffalo, returning Sun, Jul 12, priced at $327 found 5 hours ago
Southwest Airlines
Wed, Jul 8 - Sun, Jul 12
SAT
San Antonio
BUF
Buffalo
$333 Roundtrip, found 5 hours ago
$333
Roundtrip
found 5 hours ago
Select Southwest Airlines flight, departing Wed, Jul 8 from San Antonio to Buffalo, returning Sun, Jul 12, priced at $333 found 5 hours ago

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 $410
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $410

What you need to know for your flight from San Antonio Intl. to Buffalo Niagara Intl.

San Antonio (SAT) to Buffalo (BUF) at a glance

Explore a range of airlines providing flights from San Antonio (SAT) to Buffalo (BUF) on this domestic short-haul route. You can evaluate options from both full-service and budget carriers to discover the best itinerary that aligns with your budget, schedule, and travel preferences. As you prepare to visit Buffalo's renowned attractions and neighborhoods, make sure to check the essential details for your flights from San Antonio International Airport to Buffalo Niagara International Airport.

  • Fastest flight duration: around 4h 30m in-flight, plus roughly 1h 15m layover with one stop
  • Route distance: roughly 1,400 miles (2,250 km)
  • Flights per week: around 12 departures on average
  • Typical fares (one-way): economy tickets often range from $140–$490, depending on seasonality and how far ahead you book

Flights from San Antonio International Airport (SAT) to Buffalo Niagara International Airport (BUF)

Based on recent traveler bookings, here are the top airlines flying from San Antonio to Buffalo, typically favored for their one-stop options. Many travelers experience convenient layovers at Charlotte-Douglas International Airport (CLT) with about a 1-hour wait, Detroit Metropolitan Wayne County Airport (DTW) with roughly 1 hour and 30 minutes, and O'Hare International Airport (ORD) with an approximate 1 hour and 15 minutes layover. This variety allows you to explore different combinations of price, total travel time, and cabin class for the best itinerary.

  • American Airlines: This full-service airline provides one-stop options, with one-way ticket prices generally between $140 and $470. It represents about 38% of departures on this route, offering an in-flight duration of 4 hours and 30 minutes, leading to a total travel time of approximately 5 hours and 45 minutes, including layovers.
  • Delta: Another full-service option, Delta presents one-stop services with one-way fares typically ranging from $145 to $520. It accounts for around 25% of departures on this route, with a flight time of 4 hours and 30 minutes, resulting in a total journey of about 5 hours and 45 minutes, factoring in layovers.
  • Southwest Airlines: Known as a low-cost carrier, Southwest offers one-stop services with one-way fares usually between $150 and $495. It holds roughly 21% of departures on this route, providing an in-flight experience of 4 hours and 30 minutes, leading to a total travel time of about 5 hours and 45 minutes, including layovers.
  • United: This full-service airline provides one-stop options, with one-way fares typically ranging from $145 to $430. United accounts for about 14% of the departures on this route, featuring an in-flight duration of 4 hours and 30 minutes, culminating in a total journey time of around 5 hours and 45 minutes, including layovers.
  • Frontier Airlines: As a low-cost carrier, Frontier offers one-stop services, with one-way fares generally priced between $140 and $305. It constitutes roughly 3% of departures on this route, with an in-flight time of 4 hours and 30 minutes and a total journey time of approximately 5 hours and 45 minutes, including layovers.

Travelers flying from San Antonio to Buffalo can opt for an upgrade, as American Airlines provides first class service on this route.

Best time to fly from San Antonio (SAT) to Buffalo (BUF)

The most popular months for travelers flying from San Antonio to Buffalo are April, June, and July, when peak temperatures in Buffalo reach up to 72°F in July. If you prefer quieter travel, consider May, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 57.7°F. For better deals, June usually offers the lowest average one-way fare around $227. Flight availability peaks in August, with approximately 15 flights per week, making it easier to find convenient departure times. January and February have the fewest flights, with approximately 10 flights per week.

  • Cheapest time to fly: June usually offers good deals with average one-way fare around $227, roughly 12% cheaper than the yearly average.
  • More budget-friendly months to fly: September, May, and February typically offer average one-way fares of around $236.
  • Most flight options: August has the highest number of flights from San Antonio to Buffalo, with approximately 15 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January25.5°F (-3.6°C)Average10$264
February26.1°F (-3.3°C)Slightly Low10$241
March34.3°F (1.3°C)Average11$281
April45.0°F (7.2°C)Slightly High11$288
May57.7°F (14.3°C)Slightly Low11$235
June66.0°F (18.9°C)Slightly High14$227
July72.0°F (22.2°C)Slightly High13$243
August70.7°F (21.5°C)Average15$279
September64.6°F (18.1°C)Average13$231
October53.2°F (11.8°C)Slightly Low11$245
November41.4°F (5.2°C)Average13$268
December33.1°F (0.6°C)Average14$303

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from San Antonio (SAT) to Buffalo (BUF)

  • Austin to Buffalo (AUS-BUF): Austin-Bergstrom International Airport (AUS) is located roughly 67 miles from San Antonio International Airport (SAT). On this route, one-way economy fares generally fall between $125 and $445, influenced by the season and the timing of your booking. Travelers can choose from both non-stop and one-stop flights, with common layover points at Hartsfield-Jackson Atlanta International Airport (ATL) and O'Hare International Airport (ORD). The leading airlines operating on this route include American Airlines and Delta. Additionally, both business and first-class service options are available for passengers.
  • San Antonio to Rochester (SAT-ROC): Greater Rochester International Airport (ROC) is situated about 56 miles from Buffalo Niagara International Airport (BUF). One-way economy fares on this route typically range from $100 to $490, depending on the season and booking timing. This route features both one-stop and multi-stop flights, with popular layovers at O'Hare International Airport (ORD) and Baltimore Washington International Thurgood Marshall Airport (BWI). Key carriers for this route include Delta and United. First-class seating is also offered on this journey.

How to find the best prices for flights from San Antonio (SAT) to Buffalo (BUF)

Getting some of the best deals on flights from San Antonio to Buffalo is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking 2-8 weeks in advance, which is also when most travelers make their reservations. Afternoon departures (12 PM-6 PM) tend to be less expensive, although morning flights (5 AM-12 PM) are the most popular. Additionally, flying on Saturday usually offers lower prices, even though Friday is the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Buffalo Niagara International Airport from San Antonio International Airport

Buffalo welcomes travelers from San Antonio with a range of transport options based on price, convenience, and proximity. Here's how to reach Buffalo efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Buffalo, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Buffalo Niagara International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Buffalo Niagara International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Buffalo Niagara International Airport, Buffalo-Depew Station, a train station, is located about 2.6 miles away by car, while University Station, a metro station, is situated approximately 6.5 miles away by car, providing convenient access to public transportation options.

Frequently asked questions

How much does a flight from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) cost?
You can find cheap one-way flights from $134 and cheap return flights from $280 San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) with Expedia. One-way flights typically cost between $196 and $902, and return flights often range between $403 and $3960. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
April is the cheapest month to fly from San Antonio, TX (SAT) to Buffalo, NY (BUF), with average round-trip fares around $386. This is about 13% lower than the average price throughout the year, as spring often brings lower travel demand. Other budget-friendly months to consider are January and August.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Enter SAT to BUF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Frontier Airlines is one of the cheapest airlines offering connecting flights from San Antonio (SAT) to Buffalo (BUF) with a layover in Denver (DEN), starting from around $302 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
To find a cheap flight from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The best time to fly from San Antonio (SAT) to Buffalo (BUF) is in April or August. During these months, you can find return flights averaging around $386. April offers mild weather, making it a great time to explore Buffalo before the summer rush. This information is based on booking data from the past year.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from San Antonio (SAT) to Buffalo (BUF) usually departs at 5:00 AM, operated by American Airlines. An early departure like this can help you maximize your time in Buffalo. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The most popular departure times for flights from San Antonio, TX (SAT) to Buffalo, NY (BUF) are in the early morning, from 6am to 9am. This accounts for around 34% of total traffic. Many major carriers, including American Airlines and United Airlines, operate flights during this window. Many travelers prefer this time because it allows for a full day in Buffalo upon arrival.
How long does it take to fly from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Flying from SAT to BUF with a connection usually takes about 5 hours 30 minutes, traveling roughly 1,432 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
First class is available on flights from SAT to BUF. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight with Expedia?
It's easy to earn miles on a San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Buffalo from San Antonio Intl. (SAT)?
If you're planning to travel to Buffalo from San Antonio Intl. (SAT), you can fly into Buffalo Niagara Intl. (BUF) Some flights may connect through major hubs like George Bush Intercontinental (IAH), Love Field (DAL), William P. Hobby (HOU) before reaching Buffalo. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) at the last minute?
Typically, booking a last minute flight from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package?
Securing a San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) Buffalo Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
If you booked your San Antonio, TX (SAT-San Antonio Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Buffalo Niagara Intl.
Roundtrip price
$280
Distance
1431 mi

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 September. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $134 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

*Flight schedules are subject to change.

*Available to One Key members.

 

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