How many flights depart from Boston to San Antonio on average per day?

The number of flights available between Boston and San Antonio is 1 per day as of February 2026. The most frequent departure time is 11:00AM, with 100% of daily flights leaving at noon.

Which layover airport offers the lowest fares from Boston to San Antonio?

Flights via Houston (IAH) offer the lowest average round-trip price of $278.

What is the cheapest airline that flies from Boston Logan Intl to San Antonio?

Delta is the most popular carrier operating from Boston Logan Intl to San Antonio

Which airport is the most popular layover for flights between Boston and San Antonio?

Chicago (ORD) was the most common stop: 22% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to San Antonio?

Delta, Southwest and JetBlue are the top three most popular airlines that fly to San Antonio from Boston according to our data. Delta is the first choice among our users, with 54% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 7 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Boston to San Antonio?

Detroit (DTW) has the shortest average layover time for this route: 0h 50m.

How many flights depart from Boston to San Antonio on average per week?

As of February 2026, there are 9 flights per week flying from Boston to San Antonio. The most common day of the week flights depart is Tue, with 22% of flights taking off on this day.

Which layover airport has the shortest travel time from Boston to San Antonio?

Flights connecting via Nashville (BNA) have the shortest average one-way travel time: 6h 03m.

When did momondo last update prices for flights from Boston Logan Intl Airport to San Antonio Airport?

Prices for flights from Boston Logan Intl Airport to San Antonio Airport are updated daily.

How many operators does momondo search for flights from Boston Logan Intl Airport to San Antonio Airport?

As of February 2026, there are 7 operators available to choose from for flights from Boston Logan Intl Airport to San Antonio Airport.

How old do you have to be to fly from Boston Logan Intl Airport to San Antonio Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$92 Cheap Flights from Boston to San Antonio in 2026

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6:01 am - 9:27 am

BOS

SAT

28h 26m

1 stop

1:22 pm - 9:33 pm

SAT

BOS

7h 11m

1 stop

$295Spirit Airlines

Mon, Mar 16 - Thu, Mar 19

5:49 pm - 9:27 am

BOS

SAT

16h 38m

1 stop

1:22 pm - 1:26 am

SAT

BOS

35h 04m

2 stops

$296Multiple Airlines

Wed, Apr 8 - Sun, Apr 12

5:49 pm - 9:27 am

BOS

SAT

16h 38m

1 stop

1:22 pm - 3:28 pm

SAT

BOS

25h 06m

3 stops

$297Spirit Airlines

Sun, Mar 22 - Wed, Mar 25

7:43 pm - 10:18 pm

BOS

SAT

27h 35m

2 stops

6:00 am - 11:18 pm

SAT

BOS

16h 18m

1 stop

$298Spirit Airlines

Tue, Apr 21 - Tue, Apr 28

7:05 am - 10:59 am

BOS

SAT

4h 54mnonstop

12:22 pm - 5:22 pm

SAT

BOS

4h 00mnonstop

$299Delta

Sat, Mar 28 - Tue, Mar 31

5:45 am - 12:27 pm

BOS

SAT

31h 42m

3 stops

10:22 am - 11:59 pm

SAT

BOS

12h 37m

1 stop

$300Spirit Airlines

Tue, Mar 24 - Thu, Mar 26

4:22 pm - 11:59 pm

BOS

SAT

8h 37m

1 stop

10:22 am - 11:59 pm

SAT

BOS

12h 37m

1 stop

$301Spirit Airlines

Mon, Mar 9 - Thu, Mar 12

5:49 pm - 9:27 am

BOS

SAT

16h 38m

1 stop

10:22 am - 11:41 am

SAT

BOS

24h 19m

2 stops

$302Multiple Airlines

Sun, Mar 22 - Thu, Mar 26

5:49 pm - 12:27 pm

BOS

SAT

19h 38m

3 stops

1:22 pm - 9:33 pm

SAT

BOS

7h 11m

1 stop

$303Spirit Airlines

Mon, Mar 23 - Wed, Mar 25

6:10 pm - 9:30 am

BOS

SAT

16h 20m

1 stop

10:22 am - 3:28 pm

SAT

BOS

28h 06m

1 stop

$304Spirit Airlines

Mon, Mar 9 - Mon, Mar 16

Spirit Airlines flights from Boston to San Antonio

Our best Spirit Airlines deals on Boston to San Antonio flight tickets

Spirit Airlines

Mar 16

BOS6:01 amBoston Logan Intl

28h 26m

1 stop

SAT9:27 amSan Antonio

Mar 19

SAT1:22 pmSan Antonio

7h 11m

1 stop

BOS9:33 pmBoston Logan Intl

$295

Spirit Airlines

Mar 22

BOS5:49 pmBoston Logan Intl

16h 38m

1 stop

SAT9:27 amSan Antonio

Mar 25

SAT1:22 pmSan Antonio

25h 06m

3 stops

BOS3:28 pmBoston Logan Intl

$297

Spirit Airlines

Apr 21

BOS7:43 pmBoston Logan Intl

27h 35m

2 stops

SAT10:18 pmSan Antonio

Apr 28

SAT6:00 amSan Antonio

16h 18m

1 stop

BOS11:18 pmBoston Logan Intl

$298

Frontier flights from Boston to San Antonio

Our best Frontier deals on Boston to San Antonio flight tickets

Frontier

Feb 27

BOS6:00 amBoston Logan Intl

11h 15m

1 stop

SAT4:15 pmSan Antonio

Mar 2

SAT5:08 pmSan Antonio

7h 05m

1 stop

BOS1:13 amBoston Logan Intl

$340

Frontier

Mar 1

BOS6:00 amBoston Logan Intl

11h 19m

1 stop

SAT4:19 pmSan Antonio

Mar 2

SAT5:08 pmSan Antonio

7h 05m

1 stop

BOS1:13 amBoston Logan Intl

$351

Frontier

Feb 27

BOS6:00 amBoston Logan Intl

11h 15m

1 stop

SAT4:15 pmSan Antonio

Mar 2

SAT5:08 pmSan Antonio

7h 05m

1 stop

BOS1:13 amBoston Logan Intl

$361

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Mon 3/16

6:01 am-9:27 am

1 stop28h 26m

San Antonio

Thu 3/19

1:22 pm-9:33 pm

1 stop7h 11m

$295

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Wed 4/8

5:49 pm-9:27 am

1 stop16h 38m

San Antonio

Sun 4/12

1:22 pm-1:26 am

2 stops35h 04m

$296

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Sun 3/22

5:49 pm-9:27 am

1 stop16h 38m

San Antonio

Wed 3/25

1:22 pm-3:28 pm

3 stops25h 06m

$297

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Tue 4/21

7:43 pm-10:18 pm

2 stops27h 35m

San Antonio

Tue 4/28

6:00 am-11:18 pm

1 stop16h 18m

$298

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Sat 3/28

7:05 am-10:59 am

Nonstop4h 54m

San Antonio

Tue 3/31

12:22 pm-5:22 pm

Nonstop4h 00m

$299

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Tue 3/24

5:45 am-12:27 pm

3 stops31h 42m

San Antonio

Thu 3/26

10:22 am-11:59 pm

1 stop12h 37m

$300

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Mon 3/9

4:22 pm-11:59 pm

1 stop8h 37m

San Antonio

Thu 3/12

10:22 am-11:59 pm

1 stop12h 37m

$301

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Sun 3/22

5:49 pm-9:27 am

1 stop16h 38m

San Antonio

Thu 3/26

10:22 am-11:41 am

2 stops24h 19m

$302

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Mon 3/23

5:49 pm-12:27 pm

3 stops19h 38m

San Antonio

Wed 3/25

1:22 pm-9:33 pm

1 stop7h 11m

$303

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Mon 3/9

6:10 pm-9:30 am

1 stop16h 20m

San Antonio

Mon 3/16

10:22 am-3:28 pm

1 stop28h 06m

$304

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How to get the cheapest flight ticket from Boston to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of July, then book flights to San Antonio from Boston during September instead. Flights to San Antonio in September, while not as cheap as those in July, still average around $348.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Friday when prices can be found for as low as $358. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $464.

What is the cheapest Boston Logan Intl to San Antonio flight route?

Fly from Boston Logan Intl to San Antonio for the best Boston Logan Intl - San Antonio flight prices

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

You are more likely to see cheaper flights to San Antonio from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $390 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Boston for as low as $320 on momondo.

What cabin class options are available on Boston Logan Intl to San Antonio flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boston to San Antonio flight prices changed over time?

As of February 2026, prices for Boston to San Antonio flights are approximately 16% more expensive when compared to flights at the same time last year.

When to book flights from Boston to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to San Antonio according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to San Antonio (BOS to SAT) flight deals and tips

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Best Price Found	$233
Fastest flight time	4h 33m
Direct flights	Every day
Airports in San Antonio	1 airport

The best one-way flight to San Antonio from Boston in the past 72 hours is $233. The best round-trip flight deal from Boston to San Antonio found on momondo in the last 72 hours is $387.

The fastest flight from Boston to San Antonio takes 4h 33m

Direct flights go from Boston to San Antonio every day.

There is 1 airport in San Antonio. From Boston there are direct flights to San Antonio (SAT).

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How far is Boston Logan Intl to San Antonio by plane?
A flight from Boston Logan Intl to San Antonio will travel around 1763.9 mi. In terms of flight time, this usually takes a little over 4h 33m.
When did momondo last update prices for flights from Boston Logan Intl Airport to San Antonio Airport?
Prices for flights from Boston Logan Intl Airport to San Antonio Airport are updated daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to San Antonio Airport?
As of February 2026, there are 7 operators available to choose from for flights from Boston Logan Intl Airport to San Antonio Airport.
How old do you have to be to fly from Boston Logan Intl Airport to San Antonio Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Boston to San Antonio?
Based on momondo bookings for flights between Boston and San Antonio, the leading plane model is Airbus A319, making up 53.28% of the total bookings. Other popular models include Airbus A220-300 with 23.23%, Airbus A220-100 with 9.85%, and Boeing 737 MAX 8 with 6.06%.
What is the most popular airline from Boston to San Antonio?
momondo data reveals that the most frequently booked airline on the route from Boston to San Antonio is Delta, representing 72% of all bookings. The subsequent popular airlines are Southwest at 12%, American Airlines at 7%, and United Airlines at 5%.

Best airlines flying from Boston to San Antonio

Compare and see reviews for airlines that fly from Boston to San Antonio with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $102	Free Cancellation	Rating 5.7 3,041 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $169	Free Cancellation	Rating 6.3 8,489 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $227	Free Cancellation	Rating 7.2 2,897 reviews	Search JetBlue flights
Southwest	PriceFrom $229	Free Cancellation	Rating 8.0 4,300 reviews	Search Southwest flights
Delta	PriceFrom $239	Free Cancellation	Rating 7.9 8,238 reviews	Search Delta flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,345 reviews	Search United Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.1 11,345 reviews	Search American Airlines flights

Delta Flights From Boston to San Antonio
Delta flight deals from Boston to San Antonio start from $239 round-trip. Over the 6 Delta flights for this route in a normal week, average airfare is usually $393 round-trip - but some users have found much cheaper deals with momondo.

New Braunfels

Kerrville

Boerne

Pleasanton

Schertz

Why use momondo?

Why should I use momondo to find a flight deal from Boston to San Antonio?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to San Antonio. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to San Antonio with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Antonio from Boston with this policy.

How can momondo help me find flights from Boston to San Antonio?

momondo helps you find the best flight between Boston and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to San Antonio right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Antonio from Boston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Antonio trip

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Cheap flights from Boston to San Antonio from $92

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Antonio departing on 4/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Boston to San Antonio

What is the cheapest month to fly to San Antonio?

What is the cheapest day to depart on your flight to San Antonio?

What is the cheapest Boston Logan Intl to San Antonio flight route?

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

What cabin class options are available on Boston Logan Intl to San Antonio flights?

How have Boston to San Antonio flight prices changed over time?

What is the cheapest airline that flies from Boston Logan Intl to San Antonio?

What airlines fly to San Antonio?

Which airport is the most popular layover for flights between Boston and San Antonio?

Which layover airport offers the lowest fares from Boston to San Antonio?

Which layover airport has the shortest travel time from Boston to San Antonio?

Which layover airport has the shortest connection time from Boston to San Antonio?

How many flights depart from Boston to San Antonio on average per day?

How many flights depart from Boston to San Antonio on average per week?

When to book flights from Boston to San Antonio

Cheap Boston to San Antonio (BOS to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to San Antonio

Best Price Found

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Compare and see reviews for airlines that fly from Boston to San Antonio with momondo

Delta Flights From Boston to San Antonio

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Why use momondo?

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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List of cabin classes available on flights landing in San Antonio. Availability may vary depending on flight origin and airline.

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