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Cheap flights from San Antonio to Boston from $96

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 9/12. 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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Find the cheapest flights from San Antonio to Boston (SAT-BOS)

Cheap round-trip flights

Spirit Airlines Logo
4:16 pm - 12:40 amSAT-BOS
7h 24m1 stop
Spirit Airlines Logo
5:45 am - 3:11 pmBOS-SAT
10h 26m1 stop
$243Spirit Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
Logo
7:23 pm - 11:26 amSAT-BOS
15h 03m1 stop
Logo
9:18 am - 6:15 pmBOS-SAT
9h 57m1 stop
$244
Find Deal
Fri, Oct 24 - Mon, Oct 27
Spirit Airlines Logo
7:23 pm - 11:26 amSAT-BOS
15h 03m1 stop
Spirit Airlines Logo
6:11 am - 6:18 pmBOS-SAT
13h 07m1 stop
$245Spirit Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 3
Spirit Airlines Logo
4:16 pm - 12:40 amSAT-BOS
7h 24m1 stop
Spirit Airlines Logo
6:15 am - 10:27 pmBOS-SAT
17h 12m1 stop
$246Spirit Airlines
Find Deal
Fri, Nov 7 - Sun, Nov 9
Spirit Airlines Logo
7:23 pm - 11:26 amSAT-BOS
15h 03m1 stop
Spirit Airlines Logo
6:11 am - 6:18 pmBOS-SAT
13h 07m1 stop
$249Spirit Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
United Airlines Logo
12:57 pm - 9:28 pmSAT-BOS
7h 31m1 stop
United Airlines Logo
7:30 am - 1:15 pmBOS-SAT
6h 45m1 stop
$277United Airlines
Find Deal
Tue, Sep 23 - Tue, Sep 30
Delta Logo
2:30 pm - 7:44 pmSAT-BOS
4h 14mnonstop
Delta Logo
9:15 am - 12:45 pmBOS-SAT
4h 30mnonstop
$279Delta
Find Deal
Mon, Sep 22 - Sat, Sep 27
United Airlines Logo
9:50 am - 5:47 pmSAT-BOS
6h 57m1 stop
United Airlines Logo
10:21 am - 3:30 pmBOS-SAT
6h 09m1 stop
$287United Airlines
Find Deal
Tue, Sep 16 - Mon, Sep 22
Delta Logo
3:10 pm - 8:16 pmSAT-BOS
4h 06mnonstop
Delta Logo
6:05 am - 1:46 pmBOS-SAT
8h 41m1 stop
$289Delta
Find Deal
Mon, Dec 22 - Thu, Jan 1
Southwest Logo
5:00 am - 11:30 amSAT-BOS
5h 30m1 stop
Southwest Logo
9:25 am - 7:50 pmBOS-SAT
11h 25m1 stop
$292Southwest
Find Deal
Mon, Sep 15 - Tue, Sep 23

Spirit Airlines flights from San Antonio to Boston

Our best Spirit Airlines deals on San Antonio to Boston flight tickets
Spirit Airlines
Nov 13
SAT4:16 pmSan Antonio
7h 24m
1 stop
BOS12:40 amBoston Logan Intl
Nov 16
BOS5:45 amBoston Logan Intl
10h 26m
1 stop
SAT3:11 pmSan Antonio
$243
Find similar
Spirit Airlines
Oct 31
SAT7:23 pmSan Antonio
15h 03m
1 stop
BOS11:26 amBoston Logan Intl
Nov 3
BOS6:11 amBoston Logan Intl
13h 07m
1 stop
SAT6:18 pmSan Antonio
$245
Find similar
Spirit Airlines
Nov 7
SAT4:16 pmSan Antonio
7h 24m
1 stop
BOS12:40 amBoston Logan Intl
Nov 9
BOS6:15 amBoston Logan Intl
17h 12m
1 stop
SAT10:27 pmSan Antonio
$246
Find similar

United Airlines flights from San Antonio to Boston

Our best United Airlines deals on San Antonio to Boston flight tickets
United Airlines
Sep 23
SAT12:57 pmSan Antonio
7h 31m
1 stop
BOS9:28 pmBoston Logan Intl
Sep 30
BOS7:30 amBoston Logan Intl
6h 45m
1 stop
SAT1:15 pmSan Antonio
$277
Find similar
United Airlines
Sep 16
SAT9:50 amSan Antonio
6h 57m
1 stop
BOS5:47 pmBoston Logan Intl
Sep 22
BOS10:21 amBoston Logan Intl
6h 09m
1 stop
SAT3:30 pmSan Antonio
$287
Find similar
United Airlines
Sep 20
SAT9:50 amSan Antonio
6h 57m
1 stop
BOS5:47 pmBoston Logan Intl
Sep 27
BOS5:24 pmBoston Logan Intl
6h 11m
1 stop
SAT10:35 pmSan Antonio
$297
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 August 25, 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

Thu 11/13

4:16 pm-12:40 am

1 stop7h 24m

Boston Logan Intl

Sun 11/16

5:45 am-3:11 pm

1 stop10h 26m

$243

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 10/24

7:23 pm-11:26 am

1 stop15h 03m

Boston Logan Intl

Mon 10/27

9:18 am-6:15 pm

1 stop9h 57m

$244

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 10/31

7:23 pm-11:26 am

1 stop15h 03m

Boston Logan Intl

Mon 11/3

6:11 am-6:18 pm

1 stop13h 07m

$245

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 11/7

4:16 pm-12:40 am

1 stop7h 24m

Boston Logan Intl

Sun 11/9

6:15 am-10:27 pm

1 stop17h 12m

$246

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 10/17

7:23 pm-11:26 am

1 stop15h 03m

Boston Logan Intl

Mon 10/20

6:11 am-6:18 pm

1 stop13h 07m

$249

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 9/23

12:57 pm-9:28 pm

1 stop7h 31m

Boston Logan Intl

Tue 9/30

7:30 am-1:15 pm

1 stop6h 45m

$277

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 9/22

2:30 pm-7:44 pm

Nonstop4h 14m

Boston Logan Intl

Sat 9/27

9:15 am-12:45 pm

Nonstop4h 30m

$279

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 9/16

9:50 am-5:47 pm

1 stop6h 57m

Boston Logan Intl

Mon 9/22

10:21 am-3:30 pm

1 stop6h 09m

$287

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 12/22

3:10 pm-8:16 pm

Nonstop4h 06m

Boston Logan Intl

Thu 1/1

6:05 am-1:46 pm

1 stop8h 41m

$289

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 9/15

5:00 am-11:30 am

1 stop5h 30m

Boston Logan Intl

Tue 9/23

9:25 am-7:50 pm

1 stop11h 25m

$292

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, September 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 $287. If you aren’t able to travel during the month of September, then book flights to Boston from San Antonio during August instead. Flights to Boston in August, while not as cheap as those in September, still average around $299.

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 Saturday when prices can be found for as low as $334. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Tuesday is $510.

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 $389. 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 morning is when there is more demand to fly to Boston, so prices are often more expensive at around $432 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 $348 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 $287 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 August 2025, prices for San Antonio to Boston flights are approximately 19% 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

$223

Fastest flight time

3h 59m

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 $223. The best round-trip flight deal from San Antonio to Boston found on momondo in the last 72 hours is $279.
The fastest flight from San Antonio to Boston takes 3h 59m
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 4h 06m 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 $129Free CancellationRating
6.3
8,029 reviews
Search Spirit Airlines flights
JetBluePriceFrom $206Free CancellationRating
7.2
2,919 reviews
Search JetBlue flights
DeltaPriceFrom $239Free CancellationRating
7.9
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $251Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $254Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights
SouthwestPriceFrom $257Free CancellationRating
8.0
4,243 reviews
Search Southwest 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 7 flights on this route every week with an average price of $350. 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
Narragansett
Nashua
South Yarmouth
Gloucester
Brockton
Laconia
Concord
Falmouth
Everett
Wells
Sturbridge

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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