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$120+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BUF
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 88 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 septiembre 11, 2025.

Round-trip from

$232
(Southwest)

One-way from

$120
(American Airlines)

Popular in

December

Cheapest in

May

Average price

$346
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. 14% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 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 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 septiembre 11, 2025.

This Southwest deal was found by Cheapflights users on 9/10. 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.
mié. 10/15:35 amSAT - BUF
1 stop5h 25mSouthwest
sáb. 10/411:35 amBUF - SAT
1 stop9h 40mSouthwest
Deal found 9/10$232
This American Airlines deal was found by Cheapflights users on 9/9. 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.
mié. 10/16:35 amSAT - BUF
1 stop6h 30mAmerican Airlines
mié. 10/87:00 amBUF - SAT
1 stop8h 06mAmerican Airlines
Deal found 9/9$239
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/15:30 amSAT - BUF
2 stops8h 24mUnited Airlines
sáb. 10/48:20 amBUF - SAT
2 stops8h 05mUnited Airlines
Deal found 9/10$249
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/306:35 amSAT - BUF
1 stop6h 30mAmerican Airlines
jue. 10/25:38 pmBUF - SAT
1 stop7h 08mAmerican Airlines
Deal found 9/10$261
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/17:00 amSAT - BUF
1 stop13h 51mAmerican Airlines
vie. 10/37:35 amBUF - SAT
1 stop11h 14mAmerican Airlines
Deal found 9/10$271
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/14:37 pmSAT - BUF
1 stop5h 06mAmerican Airlines
lun. 11/36:33 pmBUF - SAT
1 stop6h 55mAmerican Airlines
Deal found 9/10$273
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/16:45 amSAT - BUF
1 stop5h 37mUnited Airlines
vie. 10/31:57 pmBUF - SAT
2 stops9h 38mUnited Airlines
Deal found 9/10$283
This American Airlines deal was found by Cheapflights users on 9/11. 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.
mié. 10/87:00 amSAT - BUF
1 stop7h 31mAmerican Airlines
dom. 10/125:42 pmBUF - SAT
1 stop6h 14mAmerican Airlines
Deal found 9/11$295
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/301:05 pmSAT - BUF
1 stop7h 08mUnited Airlines
jue. 10/210:28 amBUF - SAT
2 stops8h 26mUnited Airlines
Deal found 9/10$301
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/16:00 amSAT - BUF
2 stops13h 20mSouthwest
mié. 10/89:00 amBUF - SAT
1 stop8h 25mSouthwest
Deal found 9/11$318

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 septiembre 11, 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

mié. 10/1

5:35 am-12:00 pm

1 stop5h 25m

Buffalo

sáb. 10/4

11:35 am-8:15 pm

1 stop9h 40m

$232

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

mié. 10/1

6:35 am-2:05 pm

1 stop6h 30m

Buffalo

mié. 10/8

7:00 am-2:06 pm

1 stop8h 06m

$239

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

mar. 11/11

8:34 am-4:12 pm

1 stop6h 38m

Buffalo

mié. 11/19

7:40 am-1:01 pm

1 stop6h 21m

$239

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

mié. 10/1

6:45 am-1:22 pm

1 stop5h 37m

Buffalo

vie. 10/3

1:57 pm-10:35 pm

2 stops9h 38m

$283

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

lun. 11/3

2:33 pm-11:39 pm

1 stop8h 06m

Buffalo

lun. 11/10

12:05 pm-5:17 pm

1 stop6h 12m

$283

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

mié. 10/8

7:00 am-3:31 pm

1 stop7h 31m

Buffalo

dom. 10/12

5:42 pm-10:56 pm

1 stop6h 14m

$295

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

mié. 10/1

6:45 am-1:22 pm

1 stop5h 37m

Buffalo

sáb. 10/4

10:28 am-5:54 pm

2 stops8h 26m

$298

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

mié. 10/1

6:00 am-8:20 pm

2 stops13h 20m

Buffalo

mié. 10/8

9:00 am-4:25 pm

1 stop8h 25m

$318

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

mar. 9/30

1:05 pm-9:13 pm

1 stop7h 08m

Buffalo

jue. 10/2

10:28 am-5:54 pm

2 stops8h 26m

$327

San AntonioBuffalo

SAT - BUF

SATBUF

San Antonio

mar. 10/7

7:00 am-3:31 pm

1 stop7h 31m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 18 results
1
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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 August 29, 2025.

Booking 88 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 septiembre 11, 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 septiembre 11, 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
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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 Southwest, American Airlines, and United Airlines fly from San Antonio to Buffalo in about 5h 25m. The time it takes to get you to your destination can typically vary by up to 1h 05m. 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 50% lower than the current average price 3 months from now.

  • 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
Lockport
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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$370FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$377FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$334Average$645FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$345Average$502FlexibilityNo cancel feeOn-time63%

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