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Cheap flights from San Antonio to Boston from $78

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 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from San Antonio to Boston

Cheap round-trip flights

Southwest Logo
10:25 am - 5:05 pmSAT-BOS
5h 40m1 stop
Southwest Logo
5:00 am - 9:50 amBOS-SAT
5h 50m1 stop
$155Southwest
Find Deal
Thu, Sep 4 - Mon, Sep 8
Southwest Logo
3:40 pm - 10:15 pmSAT-BOS
5h 35m1 stop
Southwest Logo
5:20 am - 12:15 pmBOS-SAT
7h 55m2 stops
$160Southwest
Find Deal
Tue, Aug 19 - Wed, Sep 3
Southwest Logo
5:30 am - 3:20 pmSAT-BOS
8h 50m2 stops
Southwest Logo
12:20 pm - 8:55 pmBOS-SAT
9h 35m2 stops
$165Southwest
Find Deal
Sat, Nov 1 - Tue, Nov 4
Southwest Logo
3:40 pm - 10:15 pmSAT-BOS
5h 35m1 stop
Southwest Logo
5:20 am - 12:30 pmBOS-SAT
8h 10m2 stops
$170Southwest
Find Deal
Tue, Aug 5 - Wed, Aug 13
Southwest Logo
2:05 pm - 8:55 pmSAT-BOS
5h 50m1 stop
Southwest Logo
5:35 am - 10:55 amBOS-SAT
6h 20m1 stop
$175Southwest
Find Deal
Sat, Aug 9 - Fri, Aug 15
Spirit Airlines Logo
7:10 am - 7:34 pmSAT-BOS
11h 24m1 stop
Spirit Airlines Logo
9:32 am - 4:33 pmBOS-SAT
8h 01m1 stop
$186Spirit Airlines
Find Deal
Mon, Aug 4 - Thu, Aug 7
Spirit Airlines Logo
5:38 pm - 3:43 pmSAT-BOS
21h 05m1 stop
Spirit Airlines Logo
9:32 am - 4:33 pmBOS-SAT
8h 01m1 stop
$199Spirit Airlines
Find Deal
Thu, Aug 7 - Sun, Aug 10
Spirit Airlines Logo
7:10 am - 7:34 pmSAT-BOS
11h 24m1 stop
Spirit Airlines Logo
9:32 am - 4:33 pmBOS-SAT
8h 01m1 stop
$200Spirit Airlines
Find Deal
Mon, Aug 4 - Thu, Aug 7
Delta Logo
2:40 pm - 8:00 pmSAT-BOS
4h 20mnonstop
Delta Logo
9:20 am - 12:45 pmBOS-SAT
4h 25mnonstop
$239Delta
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Fri, Aug 22 - Mon, Aug 25
Delta Logo
6:11 pm - 1:20 amSAT-BOS
6h 09m1 stop
Delta Logo
9:20 am - 12:45 pmBOS-SAT
4h 25mnonstop
$249Delta
Find Deal
Fri, Aug 22 - Mon, Aug 25

Spirit Airlines flights from San Antonio to Boston

Our best Spirit Airlines deals on San Antonio to Boston flight tickets
Spirit Airlines
Aug 4
SAT7:10 amSan Antonio
11h 24m
1 stop
BOS7:34 pmBoston Logan Intl
Aug 7
BOS9:32 amBoston Logan Intl
8h 01m
1 stop
SAT4:33 pmSan Antonio
$186
Find similar
Spirit Airlines
Aug 7
SAT5:38 pmSan Antonio
21h 05m
1 stop
BOS3:43 pmBoston Logan Intl
Aug 10
BOS9:32 amBoston Logan Intl
8h 01m
1 stop
SAT4:33 pmSan Antonio
$199
Find similar
Spirit Airlines
Aug 4
SAT7:10 amSan Antonio
11h 24m
1 stop
BOS7:34 pmBoston Logan Intl
Aug 7
BOS9:32 amBoston Logan Intl
8h 01m
1 stop
SAT4:33 pmSan Antonio
$200
Find similar

Southwest flights from San Antonio to Boston

Our best Southwest deals on San Antonio to Boston flight tickets
Southwest
Sep 4
SAT10:25 amSan Antonio
5h 40m
1 stop
BOS5:05 pmBoston Logan Intl
Sep 8
BOS5:00 amBoston Logan Intl
5h 50m
1 stop
SAT9:50 amSan Antonio
$155
Find similar
Southwest
Aug 19
SAT3:40 pmSan Antonio
5h 35m
1 stop
BOS10:15 pmBoston Logan Intl
Sep 3
BOS5:20 amBoston Logan Intl
7h 55m
2 stops
SAT12:15 pmSan Antonio
$160
Find similar
Southwest
Nov 1
SAT5:30 amSan Antonio
8h 50m
2 stops
BOS3:20 pmBoston Logan Intl
Nov 4
BOS12:20 pmBoston Logan Intl
9h 35m
2 stops
SAT8:55 pmSan Antonio
$165
Find similar

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 $257. 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 $281.

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 $314. 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 $478.

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 in the afternoon. momondo users have found flights departing from San Antonio to Boston in the afternoon for as low as $364. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Boston, so prices are often more expensive at around $380 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 $341 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 $291 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 July 2025, prices for San Antonio to Boston flights are approximately 23% cheaper 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

$78

Fastest flight time

4h 20m

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 $78. The best round-trip flight deal from San Antonio to Boston found on momondo in the last 72 hours is $155.
The fastest flight from San Antonio to Boston takes 4h 20m
Direct flights go from San Antonio to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)
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  • 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 20m 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 $99Free CancellationRating
6.3
8,055 reviews
Search Spirit Airlines flights
JetBluePriceFrom $206Free CancellationRating
7.3
2,910 reviews
Search JetBlue flights
American AirlinesPriceFrom $213Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $239Free CancellationRating
8.0
7,952 reviews
Search Delta flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
SouthwestPriceFrom $258Free CancellationRating
8.0
4,250 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 6 flights on this route every week with an average price of $342. Delta is rated 8.0/10 by our users.

  • United Airlines Flights From San Antonio to Boston

    Another popular option for San Antonio to Boston flights is United Airlines (7.4/10, 8,846 ratings). United Airlines flies from San Antonio to Boston around 3 times per week, with deals starting from $246 round-trip and rising to an average price of around $382.

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
Nashua
Cambridge
Kennebunkport
Narragansett
Laconia
Brockton
Concord
Everett
South Yarmouth
Gloucester
Wells
Warwick
Falmouth

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

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