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$139+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAT
jun. 23 — jun. 301
lun. 6/23
lun. 6/30
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to San Antonio are usually found in September or May, booked 12 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap 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 junio 18, 2025.

Round-trip from

$277
(Southwest)

One-way from

$139
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$446
From Buffalo to San Antonio
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One-way flight from Buffalo to San Antonio
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Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 junio 18, 2025.

This Southwest deal was found by Cheapflights users on 6/16. 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.
mar. 8/56:50 amBUF - SAT
1 stop5h 20mSouthwest
lun. 8/186:25 amSAT - BUF
1 stop6h 25mSouthwest
Deal found 6/16$277
This American Airlines deal was found by Cheapflights users on 6/16. 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.
jue. 8/286:29 amBUF - SAT
1 stop6h 59mAmerican Airlines
dom. 8/316:10 amSAT - BUF
1 stop5h 46mAmerican Airlines
Deal found 6/16$307
This United Airlines deal was found by Cheapflights users on 6/16. 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. 8/57:00 amBUF - SAT
1 stop5h 45mUnited Airlines
lun. 8/182:15 pmSAT - BUF
2 stops8h 29mUnited Airlines
Deal found 6/16$330
This Delta deal was found by Cheapflights users on 6/17. 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.
mar. 7/16:30 amBUF - SAT
1 stop5h 00mDelta
sáb. 7/55:20 amSAT - BUF
1 stop5h 49mDelta
Deal found 6/17$337
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/1411:47 amBUF - SAT
3 stops31h 49mMultiple Airlines
jue. 7/176:35 pmSAT - BUF
1 stop15h 09mMultiple Airlines
Deal found 6/16$399
This Trip.com deal was found by Cheapflights users on 6/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/39:07 pmBUF - SAT
1 stop13h 14mFrontier
dom. 7/68:14 pmSAT - BUF
1 stop16h 02mFrontier
Deal found 6/16$499

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 junio 18, 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

mar. 8/5

6:50 am-11:10 am

1 stop5h 20m

San Antonio

lun. 8/18

6:25 am-1:50 pm

1 stop6h 25m

$277

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

jue. 8/28

6:29 am-12:28 pm

1 stop6h 59m

San Antonio

dom. 8/31

6:10 am-12:56 pm

1 stop5h 46m

$307

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

mar. 8/5

7:00 am-11:45 am

1 stop5h 45m

San Antonio

lun. 8/18

2:15 pm-11:44 pm

2 stops8h 29m

$330

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

mar. 7/1

6:30 am-10:30 am

1 stop5h 00m

San Antonio

sáb. 7/5

5:20 am-12:09 pm

1 stop5h 49m

$337

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

lun. 7/14

11:47 am-6:36 pm

3 stops31h 49m

San Antonio

jue. 7/17

6:35 pm-10:44 am

1 stop15h 09m

$399

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

jue. 7/3

9:07 pm-9:21 am

1 stop13h 14m

San Antonio

dom. 7/6

8:14 pm-1:16 pm

1 stop16h 02m

$499

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

lun. 8/4

6:08 am-11:36 am

1 stop6h 28m

$139

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

lun. 8/11

4:50 pm-10:55 pm

2 stops7h 05m

$144

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

jue. 7/3

11:23 am-9:47 am

1 stop23h 24m

$177

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

jue. 7/3

11:23 am-11:37 am

2 stops25h 14m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 12 results
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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 June 13, 2025.

To ensure you get the cheapest price possible for a flight from Buffalo to San Antonio, you should look to book at least 12 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, August is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of $295). Flying from Buffalo to San Antonio in March is currently the most expensive (average of $376). 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 junio 18, 2025.

It’s typically best to fly out from Buffalo to San Antonio in the evening. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 junio 18, 2025.
Get a feel of what it's like to fly with Southwest, Delta and United Airlines from Buffalo to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,280 reviews

Overall

8.0

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.0

Crew

8.6

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
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Overall

8.0

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.0

Crew

8.6

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
7,964 reviews
Southwest
8.0
Very good
4,280 reviews

Overall

8.0

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.0

Crew

8.6

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
8,810 reviews
Southwest
8.0
Very good
4,280 reviews

Overall

8.0

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.0

Crew

8.6

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
4,280 reviews

Overall

8.0

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.0

Crew

8.6

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.
Sun Country Air
6.9
Okay
345 reviews
Southwest
8.0
Very good
4,280 reviews

Overall

8.0

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.0

Crew

8.6

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 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.

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

    Currently priced at $277, Southwest will fly you from Buffalo to San Antonio and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $307 and $330, respectively. Southwest is 34% 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 $139. Users have also found prices from $144 and $177 on Southwest and Sun Country Air, 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, August is the cheapest month in which you can book a flight from Buffalo to San Antonio (average of $295). Flying from Buffalo to San Antonio in March is currently the most expensive (average of $376). 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
New Braunfels

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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 junio 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$321Average$403FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$321Average$409FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$335Average$486FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$361Average$454FlexibilityNo cancel feeOn-time63%

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