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$137+ Cheap flights from San Antonio to Buffalo (SAT - BUF)

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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BUF
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to Buffalo are usually found in May or August, booked 36 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from San Antonio to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Buffalo (BUF). 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 July 31, 2025.

Round-trip from

$225
(FlightHub)

One-way from

$137
(FlightHub)

Popular in

December

Cheapest in

May

Average price

$401
From San Antonio to Buffalo
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One-way flight from San Antonio to Buffalo
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Highest demand for flights based on searches. 16% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from San Antonio to Buffalo

Cheapest flights from San Antonio to Buffalo
Explore the most affordable flight options available from San Antonio to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/31. 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.
Sat 10/184:12 pmSAT - BUF
1 stop20h 02mFrontier
Sat 10/259:45 pmBUF - SAT
1 stop18h 40mFrontier
Deal found 7/31$225
This Delta deal was found by Cheapflights users on 7/31. 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.
Fri 9/125:10 amSAT - BUF
1 stop5h 58mDelta
Sat 9/135:10 pmBUF - SAT
1 stop7h 49mDelta
Deal found 7/31$297
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/1912:57 pmSAT - BUF
1 stop7h 19mUnited Airlines
Tue 8/267:05 amBUF - SAT
2 stops9h 21mUnited Airlines
Deal found 7/28$302
This Southwest deal was found by Cheapflights users on 7/29. 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 8/267:00 amSAT - BUF
2 stops7h 10mSouthwest
Tue 9/28:25 amBUF - SAT
1 stop11h 05mSouthwest
Deal found 7/29$308
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/188:58 amSAT - BUF
1 stop7h 43mAmerican Airlines
Mon 8/255:51 pmBUF - SAT
1 stop5h 25mAmerican Airlines
Deal found 7/29$402

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Buffalo 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 July 31, 2025.
Use the filters below to find and compare flights from San Antonio to Buffalo that are best for you.

Fly from

San Antonio

Fly to

Buffalo

Route

Depart

Return

Price

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Sat 10/18

4:12 pm-1:14 pm

1 stop20h 02m

Buffalo

Sat 10/25

9:45 pm-3:25 pm

1 stop18h 40m

$225

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Fri 9/12

5:10 am-12:08 pm

1 stop5h 58m

Buffalo

Sat 9/13

5:10 pm-11:59 pm

1 stop7h 49m

$297

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Tue 8/19

12:57 pm-9:16 pm

1 stop7h 19m

Buffalo

Tue 8/26

7:05 am-3:26 pm

2 stops9h 21m

$302

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Tue 8/26

7:00 am-3:10 pm

2 stops7h 10m

Buffalo

Tue 9/2

8:25 am-6:30 pm

1 stop11h 05m

$308

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Fri 1/2

8:03 am-4:30 pm

1 stop7h 27m

Buffalo

Mon 1/5

5:29 pm-10:25 pm

1 stop5h 56m

$352

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Fri 8/15

10:16 am-8:52 am

1 stop21h 36m

$137

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Tue 9/23

10:37 am-6:03 pm

1 stop6h 26m

$149

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Mon 10/6

11:45 am-9:42 pm

2 stops8h 57m

$174

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Sun 8/10

12:01 pm-1:16 pm

2 stops24h 15m

$235

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Wed 8/13

11:32 am-5:41 pm

1 stop5h 09m

$252

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 11 results
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Best time to book a flight from San Antonio to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from San Antonio 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 San Antonio to Buffalo

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Buffalo. Price data was last updated on July 25, 2025.

Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Buffalo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from San Antonio to Buffalo (average of $256). Flying from San Antonio to Buffalo in December is currently the most expensive (average of $337). 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 SAT to BUF?

Find hourly flight availability from San Antonio to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from San Antonio to Buffalo, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 19% versus a flight in the morning.

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from San Antonio to Buffalo, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,900 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
5.9
Fair
3,239 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

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

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

    According to our current data, Frontier ($225), Delta ($297), and United Airlines ($302) offers the cheapest pricing from San Antonio to Buffalo. These flights start at 47% lower than the current average price 3 months from now.

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

    $137 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $149 and $174, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio to Buffalo 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 San Antonio to Buffalo?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Buffalo (average of $256). Flying from San Antonio to Buffalo in December is currently the most expensive (average of $337). 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 Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

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Top 5 airlines flying from San Antonio to Buffalo

Discover the top 5 airlines that operate flights from San Antonio to Buffalo. 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$371FlexibilityNo cancel feeOn-time71%
FrontierCheapest$222Average$308FlexibilityNo cancel feeOn-time62%
DeltaCheapest$256Average$390FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$334Average$645FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$345Average$502FlexibilityNo cancel feeOn-time63%

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