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Cheap flights from San Antonio to Boston from $89

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 1/24. 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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Cheap round-trip flights

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Delta Logo
12:20 pm - 5:12 pmSAT-BOS
3h 52mnonstop
Delta Logo
11:46 am - 3:45 pmBOS-SAT
4h 59mnonstop
$299Delta
Find Deal
Fri, Feb 27 - Sun, Mar 1
Spirit Airlines Logo
6:30 am - 11:57 pmSAT-BOS
16h 27m3 stops
Spirit Airlines Logo
7:00 am - 9:40 amBOS-SAT
27h 40m2 stops
$300Spirit Airlines
Find Deal
Wed, Jan 14 - Sun, Jan 18
Spirit Airlines Logo
2:39 pm - 11:57 pmSAT-BOS
8h 18m1 stop
Spirit Airlines Logo
5:28 am - 11:52 pmBOS-SAT
19h 24m2 stops
$302Spirit Airlines
Find Deal
Thu, Dec 18 - Thu, Jan 8
Multiple Airlines Logo
4:13 pm - 4:28 pmSAT-BOS
23h 15m2 stops
Multiple Airlines Logo
10:03 am - 11:53 pmBOS-SAT
14h 50m1 stop
$303Multiple Airlines
Find Deal
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
3:10 pm - 9:57 amSAT-BOS
17h 47m1 stop
Multiple Airlines Logo
8:11 pm - 1:14 pmBOS-SAT
42h 03m2 stops
$305Multiple Airlines
Find Deal
Thu, Dec 11 - Tue, Dec 16
Multiple Airlines Logo
12:45 pm - 1:19 amSAT-BOS
11h 34m2 stops
Multiple Airlines Logo
10:56 am - 6:16 pmBOS-SAT
8h 20m1 stop
$306Multiple Airlines
Find Deal
Mon, Dec 22 - Wed, Dec 31
Spirit Airlines Logo
2:39 pm - 11:57 pmSAT-BOS
8h 18m1 stop
Spirit Airlines Logo
3:43 pm - 11:52 pmBOS-SAT
9h 09m1 stop
$307Spirit Airlines
Find Deal
Tue, Jan 6 - Mon, Jan 19
Spirit Airlines Logo
12:45 pm - 10:50 amSAT-BOS
21h 05m2 stops
Spirit Airlines Logo
7:00 am - 9:40 amBOS-SAT
27h 40m2 stops
$308Spirit Airlines
Find Deal
Tue, Jan 6 - Thu, Jan 15
Delta Logo
12:20 pm - 5:12 pmSAT-BOS
3h 52mnonstop
Delta Logo
6:45 pm - 12:34 amBOS-SAT
6h 49m1 stop
$309Delta
Find Deal
Fri, Feb 27 - Sun, Mar 1
Multiple Airlines Logo
1:55 pm - 11:56 pmSAT-BOS
9h 01m1 stop
Multiple Airlines Logo
10:56 am - 2:11 pmBOS-SAT
28h 15m2 stops
$311Multiple Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 10

Delta flights from San Antonio to Boston

Our best Delta deals on San Antonio to Boston flight tickets
Delta
Feb 27
SAT12:20 pmSan Antonio
3h 52m
BOS5:12 pmBoston Logan Intl
Mar 1
BOS11:46 amBoston Logan Intl
4h 59m
SAT3:45 pmSan Antonio
$299
Find similar
Delta
Feb 27
SAT12:20 pmSan Antonio
3h 52m
BOS5:12 pmBoston Logan Intl
Mar 2
BOS1:37 pmBoston Logan Intl
7h 48m
1 stop
SAT8:25 pmSan Antonio
$309
Find similar
Delta
Feb 20
SAT4:00 pmSan Antonio
6h 26m
1 stop
BOS11:26 pmBoston Logan Intl
Mar 3
BOS1:37 pmBoston Logan Intl
7h 48m
1 stop
SAT8:25 pmSan Antonio
$319
Find similar

Spirit Airlines flights from San Antonio to Boston

Our best Spirit Airlines deals on San Antonio to Boston flight tickets
Spirit Airlines
Jan 14
SAT6:30 amSan Antonio
16h 27m
3 stops
BOS11:57 pmBoston Logan Intl
Jan 18
BOS7:00 amBoston Logan Intl
27h 40m
2 stops
SAT9:40 amSan Antonio
$300
Find similar
Spirit Airlines
Dec 18
SAT2:39 pmSan Antonio
8h 18m
1 stop
BOS11:57 pmBoston Logan Intl
Jan 8
BOS5:28 amBoston Logan Intl
19h 24m
2 stops
SAT11:52 pmSan Antonio
$302
Find similar
Spirit Airlines
Jan 6
SAT2:39 pmSan Antonio
8h 18m
1 stop
BOS11:57 pmBoston Logan Intl
Jan 19
BOS3:43 pmBoston Logan Intl
9h 09m
1 stop
SAT11:52 pmSan Antonio
$307
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 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

Fri 2/27

12:20 pm-5:12 pm

Nonstop3h 52m

Boston Logan Intl

Sun 3/1

11:46 am-3:45 pm

Nonstop4h 59m

$299

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Wed 1/14

6:30 am-11:57 pm

3 stops16h 27m

Boston Logan Intl

Sun 1/18

7:00 am-9:40 am

2 stops27h 40m

$300

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Thu 12/18

2:39 pm-11:57 pm

1 stop8h 18m

Boston Logan Intl

Thu 1/8

5:28 am-11:52 pm

2 stops19h 24m

$302

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 2/24

4:13 pm-4:28 pm

2 stops23h 15m

Boston Logan Intl

Tue 3/3

10:03 am-11:53 pm

1 stop14h 50m

$303

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Thu 12/11

3:10 pm-9:57 am

1 stop17h 47m

Boston Logan Intl

Tue 12/16

8:11 pm-1:14 pm

2 stops42h 03m

$305

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 12/22

12:45 pm-1:19 am

2 stops11h 34m

Boston Logan Intl

Wed 12/31

10:56 am-6:16 pm

1 stop8h 20m

$306

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 1/6

2:39 pm-11:57 pm

1 stop8h 18m

Boston Logan Intl

Mon 1/19

3:43 pm-11:52 pm

1 stop9h 09m

$307

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 1/6

12:45 pm-10:50 am

2 stops21h 05m

Boston Logan Intl

Thu 1/15

7:00 am-9:40 am

2 stops27h 40m

$308

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 2/27

12:20 pm-5:12 pm

Nonstop3h 52m

Boston Logan Intl

Sun 3/1

6:45 pm-12:34 am

1 stop6h 49m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 12/8

1:55 pm-11:56 pm

1 stop9h 01m

Boston Logan Intl

Wed 12/10

10:56 am-2:11 pm

2 stops28h 15m

$311

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 $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 afternoon is when there is more demand to fly to Boston, so prices are often more expensive at around $488 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 $365 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 63% 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 52m

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 $508.
The fastest flight from San Antonio to Boston takes 3h 52m
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 52m 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
8,158 reviews
Search Spirit Airlines flights
DeltaPriceFrom $239Free CancellationRating
7.9
7,999 reviews
Search Delta flights
SouthwestPriceFrom $258Free CancellationRating
8.0
4,254 reviews
Search Southwest flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,046 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 3 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
South Yarmouth
Cambridge
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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