BUF - SAT

$128 Find Cheap Flights from Buffalo to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to San Antonio departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to San Antonio, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to San Antonio, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$300
Overall average: $426
Frontier
Wed 4/29Wed 5/6
BUF - SAT • 2 stops
Cheapest one-way
$128
Typical prices: $233-$381
Frontier
Mon 4/27
BUF - SAT • 2 stops
Top airlines
Cheapest • from $300 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Buffalo and San Antonio. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $358 (round-trip)
Shortest trip • 5h 33m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 46% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 12% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Antonio!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to San Antonio

Wed, Apr 29 - Wed, May 6
Frontier Logo
1:56 pm - 2:15 pm
BUF
-
SAT
25h 19m
2 stops
Frontier Logo
7:54 pm - 10:41 am
SAT
-
BUF
13h 47m
2 stops
$300Frontier
Sun, Apr 12 - Sun, Apr 19
Multiple Airlines Logo
11:57 am - 12:27 pm
BUF
-
SAT
25h 30m
1 stop
Multiple Airlines Logo
6:00 am - 11:47 am
SAT
-
BUF
28h 47m
2 stops
$317Multiple Airlines
Fri, Apr 10 - Mon, Apr 13
Multiple Airlines Logo
9:05 pm - 12:27 pm
BUF
-
SAT
16h 22m
1 stop
Multiple Airlines Logo
6:00 pm - 12:42 pm
SAT
-
BUF
17h 42m
1 stop
$323Multiple Airlines
Fri, Apr 10 - Mon, Apr 13
Multiple Airlines Logo
9:05 pm - 12:27 pm
BUF
-
SAT
16h 22m
1 stop
Multiple Airlines Logo
6:00 pm - 12:42 pm
SAT
-
BUF
17h 42m
1 stop
$325Multiple Airlines
Fri, Apr 10 - Mon, Apr 13
Multiple Airlines Logo
9:05 pm - 12:27 pm
BUF
-
SAT
16h 22m
1 stop
Multiple Airlines Logo
6:00 pm - 12:42 pm
SAT
-
BUF
17h 42m
1 stop
$327Multiple Airlines
Sat, Apr 18 - Wed, Apr 22
Southwest Logo
3:25 pm - 9:00 pm
BUF
-
SAT
6h 35m
1 stop
Southwest Logo
3:45 pm - 10:15 pm
SAT
-
BUF
5h 30m
1 stop
$330Southwest
Fri, Apr 10 - Mon, Apr 13
Multiple Airlines Logo
9:05 pm - 12:27 pm
BUF
-
SAT
16h 22m
1 stop
Multiple Airlines Logo
6:45 am - 12:42 pm
SAT
-
BUF
28h 57m
2 stops
$334Multiple Airlines
Tue, May 12 - Thu, May 14
Southwest Logo
9:25 am - 4:15 pm
BUF
-
SAT
7h 50m
1 stop
Southwest Logo
10:05 am - 10:45 pm
SAT
-
BUF
11h 40m
1 stop
$335Southwest
Tue, May 12 - Thu, May 14
Southwest Logo
4:00 pm - 10:00 pm
BUF
-
SAT
7h 00m
2 stops
Southwest Logo
10:05 am - 10:45 pm
SAT
-
BUF
11h 40m
1 stop
$341Southwest
Sat, Apr 18 - Wed, Apr 22
United Airlines Logo
7:00 am - 12:24 pm
BUF
-
SAT
6h 24m
1 stop
United Airlines Logo
2:14 pm - 11:33 pm
SAT
-
BUF
8h 19m
2 stops
$345United Airlines
Booking Insights

KAYAK's insights & trends for Buffalo to San Antonio flights

Get data-powered insights and trends into flights from Buffalo to San Antonio to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Buffalo to San Antonio?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buffalo to San Antonio, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Buffalo to San Antonio is September, where tickets cost $349 (return) on average. On the other hand, the most expensive months are March and April, where the average cost of round-trip tickets is $467 and $426 respectively.

How far in advance should I book a flight from Buffalo to San Antonio?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Buffalo to San Antonio, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Buffalo to San Antonio, you should book around 4 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$128
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Buffalo to San Antonio

When to book flights from Buffalo to San Antonio

Are your dates flexible? Find out the best times to travel from Buffalo to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Buffalo to San Antonio

  • What is the cheapest flight from Buffalo to San Antonio?

    In the last 3 days, the lowest price for a flight from Buffalo to San Antonio was $128 for a one-way ticket and $300 for a round-trip.

  • Do I need a passport to fly between Buffalo and San Antonio?

    No, a passport isn't needed to fly from Buffalo to San Antonio. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Buffalo to San Antonio?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Buffalo to San Antonio?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Buffalo and San Antonio, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Buffalo to San Antonio, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Buffalo to San Antonio are Southwest and Delta. With an average price for the route of $416 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $383 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Buffalo to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Antonio with an airline and back to Buffalo with another airline. Booking your flights between Buffalo and SAT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Buffalo to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to San Antonio? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4318 reviews
7.0Food
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

I elected to pay for the upgrades and found very little difference

6.0 GoodChris, Mar 2026
DAL - SAT
Read more Southwest reviews

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Delayed. Hot. Passenger next to me was so large I couldn’t move.

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

The whole experience was excellent. As it most often is with Delta

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Boarding and crew were fantastic, but I paid for a window seat with no window. Seat 11D on a CRJ-900 apparently does not have a window. Lesson learned.

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Everything was on time and service on the flight was great!

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Very old flight - time to retire it for newer airplanes

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Everything except the food and entertainment. It was a great experience though

Delayed, toilets did not flush, pilot parked to far away from Gate

Where do I start!! I was delayed with my flight from Dallas to Tampa. On the way back from Tampa to Dallas the flight was delayed over 4 hours+. I was put on another flight that was also delayed but not as long. Traveling on American Airlines is becoming exhausing.

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

The flight attendants and the service is getting worse by the day.

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

Forced to check bags. Crew uninterested in collecting trash. Unclean seats.

Mediocre would be best description. Food bland. Seat biz class uncomfortable to sleep. Crew never dimmed lights completely in an overnight flight to Europe. Would avoid AA if possible.

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

I am an AA flyer for a very long time... AA has yet to disappoint.

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

See prior comment about how Kayak mishandled my reservation and delayed my arrival by 6 hours.

Everything you need to know for your flight from Buffalo to San Antonio

Information on your arrival and departure airports