Cheap Flights from Buffalo Niagara to San Antonio International

Compare Buffalo Niagara to San Antonio International flight deals

Find the cheapest month or even day of the year to fly to San Antonio International

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Flight deals from Buffalo Niagara to San Antonio International

Looking for a cheap last-minute deal or the best return flight from Buffalo Niagara Airport to San Antonio International Airport? If you want to travel next month, return fares start from R 5,478. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Buffalo Niagara to San Antonio International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Buffalo Niagara to San Antonio International flights are currently cheapest in June.

Buffalo Niagara to San Antonio International: Alternative routes

Compare routes from Buffalo Niagara to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

Buffalo to San Antonio: Flight information

The things to know before you go.
Cheapest flight foundR 2,150
Cheapest month to flyJune

Finding cheap flights from Buffalo Niagara to San Antonio International: Frequently asked questions

The best price we found for a return flight from Buffalo Niagara to San Antonio International is R 4,838. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Buffalo Niagara to San Antonio International. But we found flights with one or more stops from R 4,838.
As of May 2026, there are no flights flying from Buffalo Niagara to San Antonio International.
The cheapest month to fly from Buffalo Niagara to San Antonio International is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Buffalo Niagara Airport to San Antonio International Airport on Sunday, 5 July 2026.
No airlines currently offer direct flights between Buffalo Niagara Airport and San Antonio International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Antonio International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to San Antonio International.

Travelling from Buffalo Niagara International Airport (BUF) to San Antonio International Airport (SAT): what you need to know

  • San Antonio is one hour behind Buffalo and is in the UTC-5 timezone.

  • Give yourself plenty of time to make your BUF to SAT flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Flying during a peak time like August? Major public holidays and other high seasons can result in longer lines at security. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

  • If you want to include a stop along the way, just uncheck 'Direct flights only' when searching for your ticket from Buffalo Niagara International Airport to San Antonio International Airport. Here are the most popular stopovers between BUF and SAT:

    • Dallas Love Field Airport

    • Detroit Metropolitan Wayne County Airport

    • Chicago Midway International Airport

How to find the cheapest flights from Buffalo Niagara International Airport (BUF) to San Antonio International Airport (SAT)

  • R 2,150 is currently the best price for a one-way Buffalo Niagara International Airport to San Antonio International Airport flight. Return flights start from R 4,838. These fares can change depending on demand and availability.

  • It's usually smart to book in advance if you want to get cheap tickets from BUF to SAT. That's because flight prices are based on demand, which tends to increase closer to departure.

  • The 'Whole month' tool shows you the cheapest flights from Buffalo Niagara International Airport to San Antonio International Airport across the entire month. It's an easy way to find a bargain if your travel plans are flexible.

  • Spend less time searching for cheap flights from BUF to SAT by setting up a Price Alert. You'll get an email or notification through the app when a lower fare pops up.

  • Discover the perfect flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Buffalo Niagara International Airport to San Antonio International Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and journey duration.

Handy information about Buffalo Niagara International Airport (BUF)

  • You'll find BUF at Genesee Street.

  • When it comes to the on-time performance of Buffalo Niagara International Airport, data shows 75.46% of flights complete their journey on time.

  • To reach Buffalo Niagara International Airport from central Buffalo, it'll take about 20 minutes if you're going by car. Of course, this depends on traffic. It's approximately 18 kilometres from the airport to the city centre.

  • Expect a trip time of roughly 1 hour 15 minutes on public transport.

  • Get your journey off to a hassle-free start by staying near BUF. Whether you're catching an early flight from Buffalo Niagara International Airport to San Antonio International Airport or just don't want to be rushed, these hotels are the answer:

Arriving at San Antonio International Airport (SAT)

Getting from San Antonio International Airport (SAT) to central San Antonio

  • The street address for SAT is 9800 Airport Boulevard.

  • San Antonio International Airport is roughly 19 kilometres from the centre of San Antonio. Driving there takes about 20 minutes.

  • If you're travelling by public transport, expect a journey of about 1 hour 30 minutes.

When to fly to San Antonio International Airport (SAT)

  • It's time to pick your dates for your flight from Buffalo Niagara International Airport to San Antonio International Airport. July is the most popular month to visit San Antonio. If you're after a more laid-back vibe, go in April.

  • Book your flight from Buffalo Niagara International Airport to San Antonio International Airport for August if you want to go to San Antonio during its warmest month. You can expect temperatures of between 23ºC (73ºF) and 40ºC (104ºF).

  • If you like cooler conditions, search for a cheap ticket from BUF to SAT in January. Temperatures average between 3ºC (37ºF) and 20ºC (68ºF) then.

Explore more of United States

  • Houston is just one of the many cities in United States waiting to be discovered after you've experienced San Antonio. Around 306 kilometres away to the east, its top attractions include The Houston Museum of Natural Science, The Museum of Fine Arts, Houston, Beck Building and Hermann Park.

  • If you want to check out another major stop in United States, consider Dallas, about 402 kilometres north-east of San Antonio. Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.