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$138+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
1 adult, Economy
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Cheap 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 December 30, 2025.

This United Airlines deal was found by Cheapflights users on 12/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:50 pmBUF - SAT
2 stops9h 04mUnited Airlines
Sat 1/35:59 pmSAT - BUF
2 stops14h 47mUnited Airlines
Deal found 12/28$931
This American Airlines deal was found by Cheapflights users on 12/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:29 pmBUF - SAT
1 stop6h 30mAmerican Airlines
Sat 1/35:48 pmSAT - BUF
1 stop5h 24mAmerican Airlines
Deal found 12/28$938
This Southwest deal was found by Cheapflights users on 12/29. 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 12/302:45 pmBUF - SAT
2 stops9h 05mSouthwest
Sat 1/35:30 pmSAT - BUF
1 stop5h 20mSouthwest
Deal found 12/29$1,309

Find 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 December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$188
(Kiwi.com)

One-way from

$138
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$409
Provider with most accurate pricing for Buffalo-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-San Antonio flights.
Search Deals
From Buffalo to San Antonio
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One-way flight from Buffalo to San Antonio
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 30, 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

Mon 2/9

7:31 pm-11:52 pm

1 stop29h 21m

San Antonio

Mon 2/16

3:33 pm-6:21 pm

1 stop25h 48m

$285

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 1/17

2:49 pm-8:56 pm

1 stop7h 07m

San Antonio

Tue 1/20

2:05 pm-8:29 pm

1 stop5h 24m

$295

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 1/18

6:00 am-3:31 pm

2 stops10h 31m

San Antonio

Tue 1/20

2:05 pm-8:29 pm

1 stop5h 24m

$300

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sun 1/11

9:08 am-6:18 pm

1 stop10h 10m

San Antonio

Sun 1/18

8:59 am-8:03 pm

1 stop10h 04m

$324

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 3/9

9:25 pm-1:23 pm

1 stop16h 58m

San Antonio

Sun 3/15

2:08 pm-8:30 pm

1 stop29h 22m

$330

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 2/19

7:00 am-2:18 pm

2 stops8h 18m

San Antonio

Tue 2/24

2:35 pm-11:38 pm

1 stop8h 03m

$337

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 2/17

7:17 pm-11:59 pm

1 stop29h 42m

San Antonio

Fri 2/20

1:57 pm-11:00 am

2 stops20h 03m

$352

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 2/19

6:45 pm-12:35 am

1 stop6h 50m

San Antonio

Sat 2/21

6:30 am-1:03 pm

1 stop5h 33m

$369

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 3/6

6:30 am-12:50 pm

1 stop7h 20m

San Antonio

Wed 3/11

1:40 pm-10:41 pm

1 stop8h 01m

$370

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 3/10

7:00 am-12:25 pm

1 stop6h 25m

San Antonio

Sat 3/14

2:15 pm-8:46 pm

1 stop5h 31m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Showing 1-10 of 13 results
1
2

Compare providers for flights from Buffalo to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to San Antonio in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Buffalo-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Buffalo-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-San Antonio flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 26, 2025.

To ensure you get the cheapest price possible for a flight from Buffalo to San Antonio, you should look to book at least 60 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, October is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of $138). Flying from Buffalo to San Antonio in February is currently the most expensive (average of $252). 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.

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 December 30, 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
4,251 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Entertainment

7.5

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
4,251 reviews
Southwest
8.0
Very good
4,251 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Entertainment

7.5

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
7.9
Good
8,014 reviews
Southwest
8.0
Very good
4,251 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Entertainment

7.5

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
9,121 reviews
Southwest
8.0
Very good
4,251 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Entertainment

7.5

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
11,074 reviews
Southwest
8.0
Very good
4,251 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Entertainment

7.5

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 United Airlines and Frontier fly from Buffalo to San Antonio in about 7h 07m. The time it takes to get you to your destination can typically vary by up to 3h 03m. 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 $329, respectively. American Airlines is 36% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Buffalo to San Antonio one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $163. Users have also found prices from $167 and $192 on Southwest and Delta, respectively.

  • 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, October is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of $138). Flying from Buffalo to San Antonio in February is currently the most expensive (average of $252). 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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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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$262Average$408FlexibilityNo cancel feeOn-time71%
DeltaCheapest$280Average$388FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$329Average$422FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$335Average$436FlexibilityNo cancel feeOn-time69%

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