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

Southwest and Delta are the most popular carriers operating from Boston Logan Intl to San Antonio

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

Flights via Detroit (DTW) offer the lowest average round-trip price of $290.

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

St. Louis (STL) has the shortest average layover time for this route: 0h 55m.

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 52% 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.

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

As of April 2026, there are 5 flights per week flying from Boston to San Antonio. The most common day of the week flights depart is Mon, with 20% 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 April 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.

$126 Cheap Flights from Boston to San Antonio in 2026

Q: What is the typical price of a round-trip flight between Boston and San Antonio?

Prices are currently low for flights on this route. Typical prices usually range from $554 to $346. The lowest price recently found on this route was $304.

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Find the cheapest flights from Boston to San Antonio

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:40 am - 8:55 am

BOS

SAT

25h 15m

1 stop

8:59 pm - 1:24 am

SAT

BOS

27h 25m

2 stops

$304Multiple Airlines

Cmt, May 9 - Sal, May 12

8:44 am - 9:10 am

BOS

SAT

25h 26m

1 stop

9:55 am - 11:06 am

SAT

BOS

24h 11m

1 stop

$312Multiple Airlines

Çar, May 27 - Paz, May 31

5:45 am - 4:16 pm

BOS

SAT

11h 31m

1 stop

8:59 pm - 9:12 am

SAT

BOS

35h 13m

2 stops

$318Multiple Airlines

Cum, May 8 - Pzt, May 11

8:44 am - 9:10 am

BOS

SAT

25h 26m

1 stop

8:59 pm - 9:42 pm

SAT

BOS

23h 43m

2 stops

$321Multiple Airlines

Çar, May 27 - Paz, May 31

5:55 am - 11:51 pm

BOS

SAT

18h 56m

1 stop

5:26 pm - 11:54 pm

SAT

BOS

29h 28m

1 stop

$325Spirit Airlines

Per, Nis 30 - Pzt, May 4

8:44 am - 8:15 am

BOS

SAT

24h 31m

1 stop

7:54 pm - 1:24 am

SAT

BOS

28h 30m

2 stops

$331Multiple Airlines

Çar, May 6 - Çar, May 13

5:20 am - 5:05 pm

BOS

SAT

12h 45m

1 stop

2:12 pm - 10:15 am

SAT

BOS

19h 03m

2 stops

$334Multiple Airlines

Pzt, Nis 13 - Çar, Nis 15

5:49 pm - 9:27 am

BOS

SAT

16h 38m

1 stop

2:12 pm - 9:31 pm

SAT

BOS

6h 19m

1 stop

$335Spirit Airlines

Paz, Nis 12 - Cmt, Nis 18

5:55 am - 11:51 pm

BOS

SAT

18h 56m

1 stop

6:00 am - 11:47 am

SAT

BOS

28h 47m

2 stops

$336Multiple Airlines

Çar, Nis 29 - Paz, May 3

8:16 pm - 11:51 pm

BOS

SAT

28h 35m

1 stop

6:00 am - 1:31 am

SAT

BOS

42h 31m

2 stops

$337Multiple Airlines

Sal, Nis 21 - Pzt, Nis 27

Spirit Airlines flights from Boston to San Antonio

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

Spirit Airlines

Apr 30

BOS5:55 amBoston Logan Intl

18h 56m

1 stop

SAT11:51 pmSan Antonio

May 4

SAT5:26 pmSan Antonio

29h 28m

1 stop

BOS11:54 pmBoston Logan Intl

$325

Spirit Airlines

Apr 12

BOS5:49 pmBoston Logan Intl

16h 38m

1 stop

SAT9:27 amSan Antonio

Apr 18

SAT2:12 pmSan Antonio

6h 19m

1 stop

BOS9:31 pmBoston Logan Intl

$335

Spirit Airlines

May 25

BOS5:45 amBoston Logan Intl

11h 31m

1 stop

SAT4:16 pmSan Antonio

May 29

SAT5:26 pmSan Antonio

29h 28m

1 stop

BOS11:54 pmBoston Logan Intl

$350

Southwest flights from Boston to San Antonio

Our best Southwest deals on Boston to San Antonio flight tickets

Southwest

May 12

BOS2:25 pmBoston Logan Intl

8h 20m

2 stops

SAT9:45 pmSan Antonio

May 15

SAT4:45 pmSan Antonio

5h 25m

1 stop

BOS11:10 pmBoston Logan Intl

$364

Southwest

Apr 27

BOS2:30 pmBoston Logan Intl

8h 45m

1 stop

SAT10:15 pmSan Antonio

May 4

SAT4:45 pmSan Antonio

5h 25m

1 stop

BOS11:10 pmBoston Logan Intl

$368

Southwest

May 9

BOS9:10 amBoston Logan Intl

9h 35m

2 stops

SAT5:45 pmSan Antonio

May 12

SAT8:20 amSan Antonio

8h 00m

2 stops

BOS5:20 pmBoston Logan Intl

$369

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Cmt 5/9

8:40 am-8:55 am

1 stop25h 15m

San Antonio

Sal 5/12

8:59 pm-1:24 am

2 stops27h 25m

$304

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Çar 5/27

8:44 am-9:10 am

1 stop25h 26m

San Antonio

Paz 5/31

9:55 am-11:06 am

1 stop24h 11m

$312

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Cum 5/8

5:45 am-4:16 pm

1 stop11h 31m

San Antonio

Pzt 5/11

8:59 pm-9:12 am

2 stops35h 13m

$318

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Çar 5/27

8:44 am-9:10 am

1 stop25h 26m

San Antonio

Paz 5/31

8:59 pm-9:42 pm

2 stops23h 43m

$321

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Per 4/30

5:55 am-11:51 pm

1 stop18h 56m

San Antonio

Pzt 5/4

5:26 pm-11:54 pm

1 stop29h 28m

$325

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Çar 5/6

8:44 am-8:15 am

1 stop24h 31m

San Antonio

Çar 5/13

7:54 pm-1:24 am

2 stops28h 30m

$331

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Pzt 4/13

5:20 am-5:05 pm

1 stop12h 45m

San Antonio

Çar 4/15

2:12 pm-10:15 am

2 stops19h 03m

$334

Quickest round-trip

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Paz 4/12

5:49 pm-9:27 am

1 stop16h 38m

San Antonio

Cmt 4/18

2:12 pm-9:31 pm

1 stop6h 19m

$335

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Çar 4/29

5:55 am-11:51 pm

1 stop18h 56m

San Antonio

Paz 5/3

6:00 am-11:47 am

2 stops28h 47m

$336

BostonSan Antonio

BOS - SAT

BOSSAT

Boston Logan Intl

Sal 4/21

8:16 pm-11:51 pm

1 stop28h 35m

San Antonio

Pzt 4/27

6:00 am-1:31 am

2 stops42h 31m

$337

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Boston and San Antonio?

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 June instead. Flights to San Antonio in June, while not as cheap as those in July, still average around $339.

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 Saturday when prices can be found for as low as $389. 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 Monday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Monday is $469.

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 $392 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 $306 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.

Can stopping save me money on Boston to San Antonio flights?

You could potentially save up to 15% on your flight if you consider stops on a Boston to San Antonio flight.

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

As of April 2026, prices for Boston to San Antonio flights are approximately 9% cheaper 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

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

Best Price Found	$208
Fastest flight time	4h 24m
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 $208. The best round-trip flight deal from Boston to San Antonio found on momondo in the last 72 hours is $398.

The fastest flight from Boston to San Antonio takes 4h 24m

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).

Search flight deals

Frequently asked questions about flying from Boston to San Antonio

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 24m.
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 April 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 53.56% of the total bookings. Other popular models include Airbus A220-300 with 29.89%, Boeing 737 MAX 8 with 5.29%, and Airbus A320-100/200 with 4.37%.
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 4%.

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 3,004 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $197	Free Cancellation	Rating 6.3 8,576 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $227	Free Cancellation	Rating 7.2 2,910 reviews	Search JetBlue flights
Delta	PriceFrom $239	Free Cancellation	Rating 7.9 8,371 reviews	Search Delta flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,533 reviews	Search United Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.1 11,549 reviews	Search American Airlines flights
Southwest	PriceFrom $258	Free Cancellation	Rating 8.0 4,337 reviews	Search Southwest flights

Delta Flights From Boston to San Antonio
Delta flight deals from Boston to San Antonio start from $239 round-trip. Over the 5 Delta flights for this route in a normal week, average airfare is usually $421 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 $126

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 5/27. 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 typical price of a round-trip flight between Boston and 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?

Can stopping save me money on Boston 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 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

Fastest flight time

Direct flights

Airports in San Antonio

Frequently asked questions about flying from Boston to San Antonio

Best airlines flying from Boston to San Antonio

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

Delta Flights From Boston to San Antonio

Traveling to a place near San Antonio?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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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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