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$109+ 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 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Find cheap flights from Buffalo to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Buffalo to San Antonio are usually found in September or August, booked 60 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

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 4, 2025.

This Gotogate deal was found by Cheapflights users on 12/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:30 amBUF - SAT
1 stop6h 21mFrontier
Sun 12/78:50 amSAT - BUF
1 stop28h 25mFrontier
Deal found 12/1$362
This Delta deal was found by Cheapflights users on 12/2. 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 12/252:06 pmBUF - SAT
1 stop5h 47mDelta
Wed 12/315:10 amSAT - BUF
1 stop6h 51mDelta
Deal found 12/2$376
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Thu 12/256:30 amBUF - SAT
2 stops14h 11mUnited Airlines
Wed 12/316:40 amSAT - BUF
1 stop5h 44mUnited Airlines
Deal found 12/2$398
This Delta deal was found by Cheapflights users on 12/2. 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 12/236:00 amBUF - SAT
1 stop7h 28mDelta
Wed 12/314:45 pmSAT - BUF
1 stop5h 52mDelta
Deal found 12/2$426
This American Airlines deal was found by Cheapflights users on 12/2. 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.
Thu 12/256:24 amBUF - SAT
1 stop6h 38mAmerican Airlines
Tue 12/305:48 pmSAT - BUF
1 stop5h 11mAmerican Airlines
Deal found 12/2$430
This American Airlines deal was found by Cheapflights users on 12/2. 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.
Thu 12/256:24 amBUF - SAT
1 stop6h 38mAmerican Airlines
Thu 1/11:34 pmSAT - BUF
1 stop8h 23mAmerican Airlines
Deal found 12/2$433
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
Fri 12/199:42 amBUF - SAT
1 stop10h 00mMultiple Airlines
Tue 12/232:39 pmSAT - BUF
2 stops29h 01mMultiple Airlines
Deal found 12/3$438
This Delta deal was found by Cheapflights users on 12/2. 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 12/252:06 pmBUF - SAT
1 stop5h 47mDelta
Mon 12/2911:16 amSAT - BUF
1 stop5h 31mDelta
Deal found 12/2$453
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Thu 12/256:30 amBUF - SAT
2 stops14h 11mUnited Airlines
Thu 1/110:00 amSAT - BUF
1 stop5h 34mUnited Airlines
Deal found 12/2$455
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Wed 12/246:30 amBUF - SAT
2 stops14h 11mUnited Airlines
Wed 12/316:40 amSAT - BUF
1 stop5h 44mUnited Airlines
Deal found 12/2$461
This American Airlines deal was found by Cheapflights users on 12/2. 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.
Tue 12/236:24 amBUF - SAT
1 stop6h 38mAmerican Airlines
Thu 1/11:34 pmSAT - BUF
1 stop8h 23mAmerican Airlines
Deal found 12/2$470

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 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$181
(American Airlines)

One-way from

$109
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$439
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
Search Deals
One-way flight from Buffalo to San Antonio
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 4, 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

Wed 2/11

4:17 pm-11:58 pm

2 stops8h 41m

San Antonio

Tue 2/17

6:00 am-3:23 pm

2 stops8h 23m

$191

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 1/29

5:16 pm-10:42 pm

1 stop6h 26m

San Antonio

Mon 2/2

5:00 pm-11:41 pm

1 stop5h 41m

$233

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 1/29

6:03 am-11:26 am

1 stop6h 23m

San Antonio

Tue 2/3

5:20 am-11:19 am

1 stop4h 59m

$257

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 1/6

10:45 am-9:21 pm

2 stops11h 36m

San Antonio

Sat 1/10

2:05 pm-8:29 pm

1 stop5h 24m

$266

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 2/25

12:10 pm-6:20 pm

1 stop7h 10m

San Antonio

Thu 3/5

4:20 pm-11:15 pm

1 stop5h 55m

$304

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Wed 3/4

3:45 pm-9:10 pm

1 stop6h 25m

San Antonio

Thu 3/12

7:50 am-5:10 pm

1 stop8h 20m

$304

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 1/22

2:49 pm-8:56 pm

1 stop7h 07m

San Antonio

Mon 1/26

2:05 pm-8:29 pm

1 stop5h 24m

$313

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 1/29

7:59 pm-11:52 pm

1 stop28h 53m

$109

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Fri 12/12

11:30 am-4:51 pm

1 stop6h 21m

$116

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Thu 1/29

2:49 pm-8:56 pm

1 stop7h 07m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 16 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 November 28, 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.

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 December 4, 2025.

It’s typically best to fly out from Buffalo to San Antonio in the evening. Doing so could potentially save you 17% 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 December 4, 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
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
8,011 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
9,066 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
11,047 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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 American Airlines, Delta, and United Airlines fly from Buffalo to San Antonio in about 6h 23m. The time it takes to get you to your destination can typically vary by up to 5h 13m. 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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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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$262Average$411FlexibilityNo cancel feeOn-time71%
DeltaCheapest$280Average$396FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$329Average$422FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$335Average$470FlexibilityNo cancel feeOn-time69%

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