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$141+ 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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BUF
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Antonio to Buffalo are usually found in August or September, booked 27 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap 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 December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/265:56 pmSAT - BUF
1 stop23h 14mFrontier
Wed 12/3111:08 amBUF - SAT
1 stop8h 08mFrontier
Deal found 12/10$506
This Southwest deal was found by Cheapflights users on 12/10. 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.
Sun 12/285:40 amSAT - BUF
1 stop7h 55mSouthwest
Fri 1/28:40 pmBUF - SAT
1 stop5h 40mSouthwest
Deal found 12/10$507
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/265:56 pmSAT - BUF
1 stop23h 14mMultiple Airlines
Wed 12/3111:08 amBUF - SAT
2 stops13h 18mMultiple Airlines
Deal found 12/10$526
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/242:08 pmSAT - BUF
1 stop5h 46mUnited Airlines
Fri 12/266:30 amBUF - SAT
1 stop6h 44mUnited Airlines
Deal found 12/11$606
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/197:37 pmSAT - BUF
1 stop24h 13mMultiple Airlines
Tue 12/236:32 pmBUF - SAT
2 stops24h 44mMultiple Airlines
Deal found 12/11$628
This American Airlines deal was found by Cheapflights users on 12/11. 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.
Sun 12/216:51 amSAT - BUF
1 stop15h 41mAmerican Airlines
Thu 1/16:24 amBUF - SAT
1 stop5h 32mAmerican Airlines
Deal found 12/11$630
This Southwest deal was found by Cheapflights users on 12/10. 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.
Fri 12/2610:50 amSAT - BUF
2 stops8h 10mSouthwest
Wed 12/311:50 pmBUF - SAT
2 stops8h 50mSouthwest
Deal found 12/10$655
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/197:37 pmSAT - BUF
1 stop24h 13mFrontier
Tue 12/231:47 pmBUF - SAT
1 stop29h 29mFrontier
Deal found 12/11$660
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sun 12/215:15 amSAT - BUF
2 stops10h 39mUnited Airlines
Thu 1/16:30 amBUF - SAT
1 stop6h 44mUnited Airlines
Deal found 12/11$691

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$182
(Frontier)

One-way from

$141
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$512
Provider with most accurate pricing for San Antonio-Buffalo flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Buffalo flights.
Search Deals
From San Antonio to Buffalo
Search Deals
One-way flight from San Antonio to Buffalo
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($46 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 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 December 12, 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

Thu 1/8

7:14 pm-8:13 am

1 stop11h 59m

Buffalo

Mon 1/12

9:08 am-7:03 pm

1 stop10h 55m

$182

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Tue 1/6

2:05 pm-8:29 pm

1 stop5h 24m

Buffalo

Tue 1/13

2:49 pm-8:56 pm

1 stop7h 07m

$412

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Fri 2/6

3:40 pm-10:30 pm

1 stop5h 50m

Buffalo

Thu 2/12

3:50 pm-12:20 am

1 stop9h 30m

$427

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Thu 1/8

12:15 pm-10:31 pm

2 stops9h 16m

Buffalo

Mon 1/12

2:49 pm-8:56 pm

1 stop7h 07m

$436

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Fri 1/16

10:35 am-7:11 pm

2 stops31h 36m

$141

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Mon 2/16

6:00 am-8:13 pm

1 stop13h 13m

$163

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Fri 1/16

2:05 pm-8:29 pm

1 stop5h 24m

$214

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Sun 2/22

5:25 am-11:43 am

1 stop5h 18m

$214

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Mon 2/16

2:10 pm-11:44 pm

2 stops8h 34m

$219

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

Fri 1/16

12:20 pm-10:30 pm

2 stops9h 10m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 13 results
1
2

Compare providers for flights from San Antonio to Buffalo

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 San Antonio to Buffalo in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 San Antonio-Buffalo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Buffalo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Buffalo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Buffalo 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 San Antonio-Buffalo 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 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 December 5, 2025.

Booking 27 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, May is the cheapest month in which you can book a flight from San Antonio to Buffalo (average of $144). Flying from San Antonio to Buffalo in November is currently the most expensive (average of $294). 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 December 12, 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 in the evening, which can drop the price by up to 56% versus a flight in the morning.

How much does it cost to fly round-trip from San Antonio to Buffalo?

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 December 12, 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
7.9
Good
4,253 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

7.9

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.

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

    Airlines like Frontier and United Airlines fly from San Antonio to Buffalo in about 5h 24m. The time it takes to get you to your destination can typically vary by up to 6h 35m. Airlines will cover a distance of 1431 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, American Airlines ($209), Delta ($256), and United Airlines ($334) offers the cheapest pricing from San Antonio to Buffalo. These flights start at 54% lower than the current average price 3 months from now.

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

    $131 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and Southwest, with prices starting from $131 and $149, 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, May is the cheapest month in which you can book a flight from San Antonio to Buffalo (average of $144). Flying from San Antonio to Buffalo in November is currently the most expensive (average of $294). 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
Lockport
Cheektowaga
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

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Top 4 airlines flying from San Antonio to Buffalo

Discover the top 4 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$371FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$371FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$334Average$645FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$350Average$476FlexibilityNo cancel feeOn-time63%

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