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Cheap flights from San Antonio to Boston from $69

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Boston departing on 1/23. 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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0 bags

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Spirit Airlines Logo
7:37 pm - 8:49 pmSAT-BOS
24h 12m3 stops
Spirit Airlines Logo
11:55 am - 11:26 pmBOS-SAT
12h 31m1 stop
$305Spirit Airlines
Find Deal
Mon, Dec 1 - Wed, Dec 31
Spirit Airlines Logo
6:00 am - 12:40 amSAT-BOS
17h 40m2 stops
Spirit Airlines Logo
5:45 am - 3:11 pmBOS-SAT
10h 26m1 stop
$308Spirit Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 2
Delta Logo
12:20 pm - 5:14 pmSAT-BOS
3h 54mnonstop
Delta Logo
6:10 am - 5:05 pmBOS-SAT
11h 55m1 stop
$309Delta
Find Deal
Fri, Feb 27 - Mon, Mar 2
Spirit Airlines Logo
7:37 pm - 8:49 pmSAT-BOS
24h 12m3 stops
Spirit Airlines Logo
5:45 am - 11:26 pmBOS-SAT
18h 41m1 stop
$310Spirit Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 11
United Airlines Logo
11:43 am - 6:13 pmSAT-BOS
5h 30m1 stop
United Airlines Logo
5:30 am - 1:08 pmBOS-SAT
8h 38m2 stops
$314United Airlines
Find Deal
Fri, Feb 27 - Sun, Mar 1
Delta Logo
6:30 am - 2:27 pmSAT-BOS
6h 57m1 stop
Delta Logo
12:10 pm - 5:17 pmBOS-SAT
6h 07m1 stop
$319Delta
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Fri, Dec 12 - Mon, Dec 15
United Airlines Logo
2:15 pm - 11:33 pmSAT-BOS
8h 18m1 stop
United Airlines Logo
2:15 pm - 8:12 pmBOS-SAT
6h 57m1 stop
$324United Airlines
Find Deal
Mon, Mar 16 - Wed, Mar 25
American Airlines Logo
6:50 am - 1:02 pmSAT-BOS
5h 12m1 stop
American Airlines Logo
8:33 am - 6:56 pmBOS-SAT
11h 23m1 stop
$326American Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
American Airlines Logo
11:25 am - 8:30 pmSAT-BOS
8h 05m1 stop
American Airlines Logo
8:33 am - 6:56 pmBOS-SAT
11h 23m1 stop
$366American Airlines
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Tue, Nov 18 - Wed, Dec 3
Southwest Logo
8:20 am - 4:45 pmSAT-BOS
7h 25m2 stops
Southwest Logo
9:20 am - 5:25 pmBOS-SAT
9h 05m2 stops
$368Southwest
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Wed, Dec 10 - Sat, Dec 13

Frontier flights from San Antonio to Boston

Our best Frontier deals on San Antonio to Boston flight tickets
Frontier
Dec 22
SAT5:56 pmSan Antonio
6h 23m
1 stop
BOS1:19 amBoston Logan Intl
Jan 2
BOS10:57 amBoston Logan Intl
7h 04m
1 stop
SAT5:01 pmSan Antonio
$316
Find similar
Frontier
Dec 29
SAT5:56 pmSan Antonio
6h 23m
1 stop
BOS1:19 amBoston Logan Intl
Dec 31
BOS6:00 amBoston Logan Intl
12h 01m
1 stop
SAT5:01 pmSan Antonio
$322
Find similar
Frontier
Nov 26
SAT5:07 pmSan Antonio
6h 37m
1 stop
BOS12:44 amBoston Logan Intl
Nov 27
BOS11:09 amBoston Logan Intl
24h 35m
2 stops
SAT10:44 amSan Antonio
$342
Find similar

American Airlines flights from San Antonio to Boston

Our best American Airlines deals on San Antonio to Boston flight tickets
American Airlines
Dec 2
SAT6:50 amSan Antonio
5h 12m
1 stop
BOS1:02 pmBoston Logan Intl
Dec 9
BOS8:33 amBoston Logan Intl
11h 23m
1 stop
SAT6:56 pmSan Antonio
$326
Find similar
American Airlines
Nov 18
SAT11:25 amSan Antonio
8h 05m
1 stop
BOS8:30 pmBoston Logan Intl
Dec 3
BOS8:33 amBoston Logan Intl
11h 23m
1 stop
SAT6:56 pmSan Antonio
$366
Find similar
American Airlines
Nov 18
SAT6:50 amSan Antonio
9h 34m
1 stop
BOS5:24 pmBoston Logan Intl
Dec 2
BOS2:17 pmBoston Logan Intl
9h 48m
1 stop
SAT11:05 pmSan Antonio
$387
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Boston 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, momondo users made 832,500 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from San Antonio to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 12/1

7:37 pm-8:49 pm

3 stops24h 12m

Boston Logan Intl

Wed 12/31

11:55 am-11:26 pm

1 stop12h 31m

$305

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 1/30

6:00 am-12:40 am

2 stops17h 40m

Boston Logan Intl

Mon 2/2

5:45 am-3:11 pm

1 stop10h 26m

$308

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 2/27

12:20 pm-5:14 pm

Nonstop3h 54m

Boston Logan Intl

Mon 3/2

6:10 am-5:05 pm

1 stop11h 55m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 12/1

7:37 pm-8:49 pm

3 stops24h 12m

Boston Logan Intl

Thu 12/11

5:45 am-11:26 pm

1 stop18h 41m

$310

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 2/27

11:43 am-6:13 pm

1 stop5h 30m

Boston Logan Intl

Sun 3/1

5:30 am-1:08 pm

2 stops8h 38m

$314

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 12/12

6:30 am-2:27 pm

1 stop6h 57m

Boston Logan Intl

Mon 12/15

12:10 pm-5:17 pm

1 stop6h 07m

$319

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 3/16

2:15 pm-11:33 pm

1 stop8h 18m

Boston Logan Intl

Wed 3/25

2:15 pm-8:12 pm

1 stop6h 57m

$324

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 12/2

6:50 am-1:02 pm

1 stop5h 12m

Boston Logan Intl

Tue 12/9

8:33 am-6:56 pm

1 stop11h 23m

$326

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 11/18

11:25 am-8:30 pm

1 stop8h 05m

Boston Logan Intl

Wed 12/3

8:33 am-6:56 pm

1 stop11h 23m

$366

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Wed 12/10

8:20 am-4:45 pm

2 stops7h 25m

Boston Logan Intl

Sat 12/13

9:20 am-5:25 pm

2 stops9h 05m

$368

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

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

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

What is the cheapest month to fly to Boston?

In general, August is the cheapest month to fly from San Antonio to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $309. If you aren’t able to travel during the month of August, then book flights to Boston from San Antonio during September instead. Flights to Boston in September, while not as cheap as those in August, still average around $309.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from San Antonio to Boston is on a Thursday when prices can be found for as low as $355. 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 Boston on Sunday is $518.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is at noon. momondo users have found flights departing from San Antonio to Boston at noon for as low as $395. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Boston, so prices are often more expensive at around $484 per ticket.

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

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

How far in advance should I book a flight to Boston?

You are more likely to see cheaper flights to Boston from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $364 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from San Antonio for as low as $299 on momondo.

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

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

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

As of November 2025, prices for San Antonio to Boston flights are approximately 5% more expensive when compared to flights at the same time last year.

When to book flights from San Antonio to Boston

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

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

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

Best Price Found

$208

Fastest flight time

3h 54m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from San Antonio in the past 72 hours is $208. The best round-trip flight deal from San Antonio to Boston found on momondo in the last 72 hours is $359.
The fastest flight from San Antonio to Boston takes 3h 54m
Direct flights go from San Antonio to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)
Search flight deals

  • How far is San Antonio to Boston Logan Intl by plane?

    San Antonio and Boston Logan Intl are 1763.9 mi apart from one another. Typically, this will take 3h 54m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The travel and health documents you'll need for your trip to Boston Logan Intl 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 Boston Logan Intl 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 San Antonio to Boston?

  • What is the most popular airline from San Antonio to Boston?

Best airlines flying from San Antonio to Boston

Compare and see reviews for airlines that fly from San Antonio to Boston with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $169Free CancellationRating
6.3
8,113 reviews
Search Spirit Airlines flights
DeltaPriceFrom $239Free CancellationRating
7.9
8,003 reviews
Search Delta flights
SouthwestPriceFrom $258Free CancellationRating
8.0
4,239 reviews
Search Southwest flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,002 reviews
Search United Airlines flights

  • Delta Flights From San Antonio to Boston

    The lowest priced Delta flight from San Antonio to Boston from the last 72 hours was $239. Generally, Delta has 5 flights on this route every week with an average price of $352. Delta is rated 7.9/10 by our users.

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Old Orchard Beach
Hampton
York Beach
Plymouth
Kennebunkport
Cambridge
South Yarmouth
Narragansett
Nashua
Gloucester
Falmouth
Laconia
Brockton
Concord
Everett
Sturbridge
Chatham

Why use momondo?

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

It is quick and easy to find San Antonio to Boston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Boston that suits you.

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

momondo does allow users to show only those flights to Boston from San Antonio which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between San Antonio and Boston 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 San Antonio to Boston right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Boston from San Antonio. 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 Boston 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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