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$141+ Cheap flights from Buffalo to San Antonio (BUF - SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to San Antonio are usually found in September or May, booked 13 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Buffalo to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2025.

Round-trip from

$200
(FlightHub)

One-way from

$141
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$348
From Buffalo to San Antonio
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One-way flight from Buffalo to San Antonio
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Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Buffalo to San Antonio

Cheapest flights from Buffalo to San Antonio
Explore the most affordable flight options available from Buffalo to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This FlightHub deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:24 pmBUF - SAT
1 stop24h 13mFrontier
Sun 10/268:26 pmSAT - BUF
1 stop19h 03mFrontier
Deal found 9/14$200
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:52 pmBUF - SAT
2 stops23h 00mFrontier
Thu 10/238:26 pmSAT - BUF
1 stop19h 03mFrontier
Deal found 9/16$273
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/199:13 pmBUF - SAT
2 stops20h 37mFrontier
Thu 10/238:26 pmSAT - BUF
1 stop19h 03mFrontier
Deal found 9/16$300
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:20 amBUF - SAT
1 stop5h 20mDelta
Tue 10/2811:35 amSAT - BUF
1 stop6h 15mDelta
Deal found 9/15$317
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:00 amBUF - SAT
2 stops6h 45mSouthwest
Tue 11/43:05 pmSAT - BUF
1 stop6h 20mSouthwest
Deal found 9/15$322
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:30 pmBUF - SAT
1 stop5h 50mDelta
Thu 10/2311:35 amSAT - BUF
1 stop6h 15mDelta
Deal found 9/15$330
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:30 pmBUF - SAT
1 stop5h 50mDelta
Sat 10/256:41 amSAT - BUF
1 stop7h 47mDelta
Deal found 9/15$343

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Buffalo to San Antonio that are best for you.

Fly from

Buffalo

Fly to

San Antonio

Route

Depart

Return

Price

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 10/19

9:13 pm-4:50 pm

2 stops20h 37m

San Antonio

Thu 10/23

8:26 pm-4:29 pm

1 stop19h 03m

$300

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 10/28

1:35 pm-10:20 pm

1 stop9h 45m

San Antonio

Tue 11/4

5:45 am-12:05 pm

1 stop5h 20m

$317

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 10/21

6:20 am-10:40 am

1 stop5h 20m

San Antonio

Wed 10/29

5:25 am-12:09 pm

1 stop5h 44m

$317

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 10/22

7:30 pm-12:20 am

1 stop5h 50m

San Antonio

Tue 10/28

5:25 am-12:09 pm

1 stop5h 44m

$317

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 11/4

7:30 pm-12:20 am

1 stop5h 50m

San Antonio

Wed 11/12

3:00 pm-11:50 pm

1 stop7h 50m

$317

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 11/4

5:25 pm-11:05 pm

1 stop6h 40m

San Antonio

Wed 11/12

1:40 pm-10:56 pm

2 stops8h 16m

$322

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 10/27

3:56 pm-10:42 pm

1 stop7h 46m

San Antonio

Wed 10/29

5:25 am-12:09 pm

1 stop5h 44m

$330

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 10/22

7:30 pm-12:20 am

1 stop5h 50m

San Antonio

Sat 10/25

6:41 am-3:28 pm

1 stop7h 47m

$330

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 2/26

6:00 am-1:26 pm

1 stop8h 26m

San Antonio

Sat 2/28

4:00 pm-11:07 pm

1 stop6h 07m

$343

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 12/8

5:06 pm-10:27 pm

1 stop30h 21m

$141

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 20 results
1
2

Best time to book a flight from Buffalo to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to San Antonio. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Buffalo to San Antonio, you should look to book at least 13 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Buffalo to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of $295). Flying from Buffalo to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BUF to SAT?

Find hourly flight availability from Buffalo to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

It’s typically best to fly out from Buffalo to San Antonio in the evening. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Buffalo to San Antonio to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,924 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Buffalo to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Buffalo to San Antonio?

    Airlines like Frontier, Southwest, and Delta fly from Buffalo to San Antonio in about 5h 20m. The time it takes to get you to your destination can typically vary by up to 15h 17m. There are 1431 mi between Buffalo and San Antonio. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Buffalo to San Antonio round-trip?

    Currently priced at $262, American Airlines will fly you from Buffalo to San Antonio and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Southwest - these airlines can fly you to your destination from $280 and $335, respectively. American Airlines is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Buffalo to San Antonio that include hotel bookings?

    Yes. In addition to deals on Buffalo to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to San Antonio.

  • Can I find deals for business class flights from Buffalo to San Antonio?

    Yes. Cheapflights offers flight deals from Buffalo to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of $295). Flying from Buffalo to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for Buffalo to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Buffalo to San Antonio

Discover the top 4 airlines that operate flights from Buffalo to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$262Average$415FlexibilityNo cancel feeOn-time71%
DeltaCheapest$280Average$396FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$335Average$448FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$335Average$486FlexibilityNo cancel feeOn-time69%

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