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

Currently priced at $317, 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 United Airlines - these airlines can fly you to your destination from $335 and $358, respectively. American Airlines is 23% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from Buffalo to San Antonio?

Travelers seeking maximum savings on their Buffalo to San Antonio flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Buffalo to San Antonio?

The most popular airlines flying from Buffalo to San Antonio are American Airlines, Delta and United Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Buffalo to San Antonio?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 56% on the overall cost on flights from Buffalo to San Antonio.

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

Travelers have found it’s best to book a flight 20 days in advance to save up to 81% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 20 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Buffalo to San Antonio 1-2 weeks in advance for as low as $300, or $976 for flights within the next 24 hours.

What is the cheapest month to fly from Buffalo to San Antonio?

Our data shows that September tends to be the cheapest month to fly to San Antonio from Buffalo. Users have commonly found prices around $415 for the month, but tickets can be as low as $265. Due to multiple factors, prepare for potentially higher prices in December.

Most accurate provider : When it comes to deals on Buffalo-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-San Antonio flight deals on Cheapflights vs. FlightHub >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.

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.

$135+ Flights from Buffalo to San Antonio

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Buffalo to San Antonio are usually found in September or August, booked 19 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Buffalo to San Antonio

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$317 (American Airlines)
One-way from	$168 (Delta)
Popular in	December
Cheapest in	September
Average price	$370

Provider with most accurate pricing for Buffalo-San Antonio flight deals.

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Provider most trusted by Cheapflights users for Buffalo-San Antonio flights.

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From Buffalo to San Antonio

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One-way flight from Buffalo to San Antonio

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).

Search Deals

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 May 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 May 1, 2025.

Sat 5/1711:38 amBUF - SAT

1 stop23h 14mFrontier

Thu 5/227:36 pmSAT - BUF

1 stop19h 53mFrontier

Deal found 4/28

$280

Tue 6/176:10 amBUF - SAT

1 stop6h 29mAmerican Airlines

Sat 6/216:25 amSAT - BUF

1 stop7h 22mAmerican Airlines

Deal found 4/28

$318

Mon 6/95:10 pmBUF - SAT

1 stop6h 13mDelta

Thu 6/122:49 pmSAT - BUF

1 stop8h 02mDelta

Deal found 4/29

$335

Tue 10/217:00 amBUF - SAT

1 stop5h 50mUnited Airlines

Thu 10/307:00 amSAT - BUF

1 stop5h 10mUnited Airlines

Deal found 4/30

$353

Mon 8/45:05 amBUF - SAT

1 stop8h 25mSouthwest

Thu 8/79:25 amSAT - BUF

1 stop6h 20mSouthwest

Deal found 4/29

$362

Best flights from Buffalo to San Antonio
Discover carefully curated flight deals from Buffalo to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Tue 6/37:32 pmBUF - SAT

1 stop5h 26mAmerican Airlines

Sat 6/76:25 amSAT - BUF

1 stop7h 22mAmerican Airlines

Deal found 4/30

$317

Mon 6/95:10 pmBUF - SAT

1 stop6h 13mDelta

Thu 6/122:49 pmSAT - BUF

1 stop8h 02mDelta

Deal found 4/29

$335

Tue 10/217:00 amBUF - SAT

1 stop5h 50mUnited Airlines

Thu 10/3012:24 pmSAT - BUF

2 stops7h 07mUnited Airlines

Deal found 4/30

$358

Mon 8/45:05 amBUF - SAT

1 stop8h 25mSouthwest

Thu 8/79:25 amSAT - BUF

1 stop6h 20mSouthwest

Deal found 4/30

$362

Last-minute flights from Buffalo to San Antonio
Discover last-minute flight deals from Buffalo to San Antonio. Data last updated May 1, 2025 and is based on user searches.

Thu 5/86:25 amBUF - SAT

2 stops8h 50mSouthwest

Tue 5/131:35 pmSAT - BUF

1 stop8h 20mSouthwest

Deal found 4/29

$652

Thu 5/86:00 amBUF - SAT

1 stop10h 42mUnited Airlines

Thu 5/152:08 pmSAT - BUF

1 stop6h 14mUnited Airlines

Deal found 4/29

$682

Thu 5/810:50 amBUF - SAT

2 stops10h 36mDelta

Mon 5/121:30 pmSAT - BUF

2 stops8h 43mDelta

Deal found 4/29

$1,395

Fri 5/92:25 pmBUF - SAT

1 stop8h 59mAmerican Airlines

Tue 5/136:34 amSAT - BUF

1 stop9h 41mAmerican Airlines

Deal found 4/29

$582

Sat 5/1711:38 amBUF - SAT

1 stop23h 14mFrontier

Thu 5/227:36 pmSAT - BUF

1 stop19h 53mFrontier

Deal found 4/28

$280

Sat 5/176:45 amBUF - SAT

2 stops10h 01mUnited Airlines

Thu 5/222:10 pmSAT - BUF

1 stop5h 51mUnited Airlines

Deal found 4/28

$454

Sat 5/171:50 pmBUF - SAT

2 stops9h 45mSouthwest

Thu 5/225:20 amSAT - BUF

1 stop10h 15mSouthwest

Deal found 4/28

$528

Mon 5/196:10 amBUF - SAT

1 stop5h 42mAmerican Airlines

Thu 5/226:15 amSAT - BUF

1 stop7h 05mAmerican Airlines

Deal found 4/30

$497

Fri 5/235:55 pmBUF - SAT

1 stop5h 20mDelta

Tue 5/274:15 pmSAT - BUF

1 stop6h 40mDelta

Deal found 4/29

$369

One-way flights from Buffalo to San Antonio
Search for one-way flight options from Buffalo to San Antonio. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Sat 6/76:00 amBUF - SAT

1 stop7h 30mDelta

Deal found 4/30

$168

Sat 6/72:45 pmBUF - SAT

2 stops9h 12mUnited Airlines

Deal found 4/30

$213

Cheapflights Fare Finder

Use the filters below to find and compare flights from Buffalo to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 5/17

11:38 am-9:52 am

1 stop23h 14m

San Antonio

Thu 5/22

7:36 pm-4:29 pm

1 stop19h 53m

$280

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 6/17

6:10 am-11:39 am

1 stop6h 29m

San Antonio

Sat 6/21

6:25 am-2:47 pm

1 stop7h 22m

$318

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 6/9

5:10 pm-10:23 pm

1 stop6h 13m

San Antonio

Thu 6/12

2:49 pm-11:51 pm

1 stop8h 02m

$335

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 6/14

8:20 pm-12:25 am

1 stop5h 05m

San Antonio

Mon 8/11

7:40 am-3:50 pm

2 stops7h 10m

$367

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Tue 6/17

5:51 pm-10:57 pm

1 stop6h 06m

San Antonio

Sat 6/21

6:45 am-6:56 pm

2 stops11h 11m

$403

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Mon 5/5

9:51 am-7:31 pm

1 stop10h 40m

$135

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 6/7

6:00 am-12:30 pm

1 stop7h 30m

$168

BuffaloSan Antonio

BUF - SAT

BUFSAT

Buffalo

Sat 6/7

6:15 am-3:55 pm

2 stops10h 40m

$213

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Buffalo to San Antonio

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 May.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy2 stars	Trust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-San Antonio flight deals on Cheapflights vs. FlightHub >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?

To ensure you get the cheapest price possible for a flight from Buffalo to San Antonio, you should look to book at least 19 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?

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

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

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 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

4,294 reviews

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

4,294 reviews

Southwest

8.0

Very good

4,294 reviews

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

7,934 reviews

Southwest

8.0

Very good

4,294 reviews

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

8,696 reviews

Southwest

8.0

Very good

4,294 reviews

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

4,294 reviews

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

What are the cheapest airlines flying from Buffalo to San Antonio round-trip?
Currently priced at $317, 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 United Airlines - these airlines can fly you to your destination from $335 and $358, respectively. American Airlines is 23% cheaper than the average price of flights available within the next 90 days to this destination.
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.

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Other flights to San Antonio

Top 4 airlines flying from Buffalo to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$306	Average$406	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$321	Average$412	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$335	Average$483	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$361	Average$461	FlexibilityNo cancel fee	On-time63%

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$135+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Buffalo to San Antonio with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Buffalo to San Antonio are usually found in September or August, booked 19 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Buffalo to San Antonio

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Buffalo to San Antonio

Cheapest flights from Buffalo to San AntonioExplore 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 May 1, 2025.

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 May 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Buffalo to San Antonio that are best for you.

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 May.

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.

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 April 25, 2025.

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

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 May 1, 2025.

Rainfall in San Antonio by month

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

Temperature in San Antonio by month

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

Reviews of airlines servicing San Antonio

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.

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?

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

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

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

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

Traveling to a place near Buffalo?

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Alternative routes for Buffalo to San Antonio

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Top 4 airlines flying from Buffalo to San Antonio

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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 May 1, 2025.