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Cheap flights from Boston to San Antonio from $70

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 3/6. 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 Boston to San Antonio

Cheap round-trip flights

These are some of the best round-trip flight deals from Boston to San Antonio that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Boston to San Antonio.

Cheap last minute flights

Planning a quick getaway from Boston to San Antonio? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Antonio, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Boston to San Antonio

Find recent round-trip train or bus tickets from Boston to San Antonio.

All round-trip flight deals from Boston to San Antonio

The cheapest plane tickets from Boston to San Antonio found on KAYAK recently.
6:00 am - 6:15 pmBOS-SAT
13h 15m1 stop
7:15 pm - 12:27 amSAT-BOS
28h 12m1 stop
$159Frontier
Find Deal
Mon, Feb 3 - Mon, Feb 10
6:00 am - 6:15 pmBOS-SAT
13h 15m1 stop
7:15 pm - 12:27 amSAT-BOS
28h 12m1 stop
$160Frontier
Find Deal
Mon, Feb 3 - Mon, Feb 10
6:00 am - 8:00 pmBOS-SAT
15h 00m1 stop
8:37 pm - 8:09 amSAT-BOS
10h 32m1 stop
$171Frontier
Find Deal
Thu, Mar 6 - Thu, Mar 13
5:27 pm - 10:03 amBOS-SAT
17h 36m1 stop
11:58 am - 9:05 amSAT-BOS
20h 07m1 stop
$179Spirit Airlines
Find Deal
Tue, Mar 11 - Mon, Mar 17
4:50 pm - 10:22 amBOS-SAT
18h 32m1 stop
11:17 am - 7:21 pmSAT-BOS
7h 04m1 stop
$180Spirit Airlines
Find Deal
Sun, Feb 23 - Thu, Feb 27
9:15 am - 1:13 pmBOS-SAT
4h 58mnonstop
2:00 pm - 7:05 pmSAT-BOS
4h 05mnonstop
$299Delta
Find Deal
Sat, May 24 - Wed, May 28
12:01 pm - 3:55 pmBOS-SAT
4h 54mnonstop
6:31 pm - 12:58 amSAT-BOS
5h 27m1 stop
$309Delta
Find Deal
Thu, Feb 20 - Wed, Feb 26
5:46 pm - 11:52 pmBOS-SAT
7h 06m1 stop
6:35 am - 5:23 pmSAT-BOS
9h 48m1 stop
$317American Airlines
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Fri, Feb 28 - Tue, Mar 4
2:45 pm - 11:20 pmBOS-SAT
9h 35m2 stops
6:05 am - 5:00 pmSAT-BOS
9h 55m1 stop
$344Southwest
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Fri, Feb 21 - Tue, Feb 25
5:45 am - 2:20 pmBOS-SAT
9h 35m2 stops
8:25 pm - 7:55 amSAT-BOS
10h 30m1 stop
$394Southwest
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Thu, Feb 13 - Mon, Feb 17
6:00 am - 8:00 pmBOS-SAT
15h 00m1 stop
$70Frontier
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Thu, Mar 6
6:00 am - 8:00 pmBOS-SAT
15h 00m1 stop
$75Frontier
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Thu, Mar 6
5:35 am - 11:09 amBOS-SAT
6h 34m1 stop
$160United Airlines
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Fri, Feb 21
5:33 pm - 10:25 pmBOS-SAT
5h 52m1 stop
$179American Airlines
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Sat, Jun 14
11:47 am - 5:15 pmBOS-SAT
6h 28m1 stop
$180American Airlines
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Fri, Mar 21
5:45 am - 1:50 pmBOS-SAT
9h 05m2 stops
$185Southwest
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Wed, Feb 19
12:01 pm - 3:55 pmBOS-SAT
4h 54mnonstop
$199Delta
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Thu, Mar 6
8:30 am - 3:30 pmBOS-SAT
8h 00m1 stop
$200United Airlines
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Fri, Jul 18
5:10 am - 12:55 pmBOS-SAT
8h 45m2 stops
$214Southwest
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Thu, Mar 20
12:50 pm - 4:39 pmBOS-SAT
4h 49mnonstop
$229Delta
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Fri, Mar 14
6:56 pm - 4:33 amBOS-SAT
34h 37m3 stops
1:52 pm - 9:28 amSAT-BOS
18h 36m2 stops
$332Spirit Airlines
Find Deal
Thu, Jan 23 - Mon, Jan 27
6:56 pm - 4:33 amBOS-SAT
34h 37m3 stops
8:21 pm - 10:36 amSAT-BOS
13h 15m1 stop
$342Spirit Airlines
Find Deal
Thu, Jan 23 - Mon, Jan 27
6:25 am - 3:12 pmBOS-SAT
33h 47m3 stops
8:21 pm - 10:36 amSAT-BOS
13h 15m1 stop
$356Spirit Airlines
Find Deal
Fri, Jan 24 - Mon, Jan 27
6:56 pm - 4:33 amBOS-SAT
34h 37m3 stops
1:52 pm - 12:13 amSAT-BOS
33h 21m3 stops
$364Spirit Airlines
Find Deal
Thu, Jan 23 - Mon, Jan 27
12:01 pm - 3:55 pmBOS-SAT
4h 54mnonstop
12:22 pm - 5:20 pmSAT-BOS
3h 58mnonstop
$654Delta
Find Deal
Thu, Jan 23 - Tue, Jan 28
5:40 am - 12:54 pmBOS-SAT
8h 14m1 stop
12:22 pm - 5:20 pmSAT-BOS
3h 58mnonstop
$664Delta
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Thu, Jan 23 - Tue, Jan 28
2:45 pm - 8:21 pmBOS-SAT
6h 36m1 stop
7:45 am - 2:30 pmSAT-BOS
5h 45m1 stop
$819United Airlines
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Sat, Jan 25 - Sun, Jan 26
5:45 am - 1:27 pmBOS-SAT
8h 42m2 stops
5:30 am - 2:30 pmSAT-BOS
8h 00m2 stops
$935United Airlines
Find Deal
Sun, Jan 26 - Wed, Jan 29
7:00 am - 11:18 pmBOS-SAT
17h 18m2 stops
3:03 pm - 11:59 pmSAT-BOS
31h 56m1 stop
$1,378Alaska Airlines
Find Deal
Sat, Jan 25 - Sun, Jan 26
7:00 am - 11:18 pmBOS-SAT
17h 18m2 stops
5:45 am - 11:59 pmSAT-BOS
17h 14m2 stops
$1,453Alaska Airlines
Find Deal
Sat, Jan 25 - Sun, Jan 26
9:15 am - 1:13 pmBOS-SAT
4h 58mnonstop
2:00 pm - 7:05 pmSAT-BOS
4h 05mnonstop
$299Delta
Find Deal
Sat, May 24 - Sun, May 25
12:50 pm - 4:39 pmBOS-SAT
4h 49mnonstop
12:20 pm - 5:15 pmSAT-BOS
3h 55mnonstop
$319Delta
Find Deal
Fri, Mar 21 - Mon, Mar 24
9:15 am - 1:13 pmBOS-SAT
4h 58mnonstop
2:00 pm - 7:05 pmSAT-BOS
4h 05mnonstop
$339Delta
Find Deal
Fri, May 16 - Wed, May 21
9:15 am - 1:13 pmBOS-SAT
4h 58mnonstop
2:00 pm - 7:05 pmSAT-BOS
4h 05mnonstop
$348Delta
Find Deal
Wed, Apr 23 - Wed, Apr 30
12:50 pm - 4:39 pmBOS-SAT
4h 49mnonstop
12:20 pm - 5:15 pmSAT-BOS
3h 55mnonstop
$368Delta
Find Deal
Thu, Mar 27 - Mon, Mar 31
12:01 pm - 3:55 pmBOS-SAT
4h 54mnonstop
12:22 pm - 5:20 pmSAT-BOS
3h 58mnonstop
$369Delta
Find Deal
Thu, Feb 6 - Thu, Feb 13
12:50 pm - 4:39 pmBOS-SAT
4h 49mnonstop
12:20 pm - 5:15 pmSAT-BOS
3h 55mnonstop
$378Delta
Find Deal
Fri, Mar 14 - Tue, Mar 18
9:15 am - 1:13 pmBOS-SAT
4h 58mnonstop
2:00 pm - 7:05 pmSAT-BOS
4h 05mnonstop
$397Delta
Find Deal
Sun, May 25 - Fri, May 30
9:15 am - 1:13 pmBOS-SAT
4h 58mnonstop
2:00 pm - 7:05 pmSAT-BOS
4h 05mnonstop
$398Delta
Find Deal
Thu, Jun 5 - Sun, Jun 8
12:01 pm - 3:55 pmBOS-SAT
4h 54mnonstop
12:22 pm - 5:20 pmSAT-BOS
3h 58mnonstop
$404Delta
Find Deal
Wed, Feb 26 - Sun, Mar 2

Spirit Airlines flights from Boston to San Antonio

Our best Spirit Airlines deals on Boston to San Antonio flight tickets
Spirit Airlines
Mar 11
BOS5:27 pmBoston Logan Intl
17h 36m
1 stop
SAT10:03 amSan Antonio
Mar 17
SAT11:58 amSan Antonio
20h 07m
1 stop
BOS9:05 amBoston Logan Intl
Spirit Airlines
Feb 23
BOS4:50 pmBoston Logan Intl
18h 32m
1 stop
SAT10:22 amSan Antonio
Feb 27
SAT11:17 amSan Antonio
7h 04m
1 stop
BOS7:21 pmBoston Logan Intl
Spirit Airlines
Feb 23
BOS5:40 amBoston Logan Intl
29h 42m
1 stop
SAT10:22 amSan Antonio
Feb 27
SAT11:17 amSan Antonio
11h 30m
1 stop
BOS11:47 pmBoston Logan Intl

Delta flights from Boston to San Antonio

Our best Delta deals on Boston to San Antonio flight tickets
Delta
May 24
BOS9:15 amBoston Logan Intl
4h 58m
SAT1:13 pmSan Antonio
May 28
SAT2:00 pmSan Antonio
4h 05m
BOS7:05 pmBoston Logan Intl
Delta
Feb 20
BOS12:01 pmBoston Logan Intl
4h 54m
SAT3:55 pmSan Antonio
Feb 26
SAT6:31 pmSan Antonio
5h 27m
1 stop
BOS12:58 amBoston Logan Intl
Delta
Feb 20
BOS6:19 pmBoston Logan Intl
7h 08m
1 stop
SAT12:27 amSan Antonio
Feb 26
SAT12:30 pmSan Antonio
8h 57m
1 stop
BOS10:27 pmBoston Logan Intl

See travel insights to San Antonio from

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

What is the cheapest month to fly to San Antonio?

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

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 Tuesday when prices can be found for as low as $314. 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 Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $395.

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

According to our data, the cheapest time of day to fly to San Antonio is in the afternoon. momondo users have found flights departing from Boston to San Antonio in the afternoon for as low as $292. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the evening, with an average ticket price of $383. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 4 weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $346 when searching 4 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 $318 on momondo.

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

There are 3 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.

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

As of January 2025, prices for Boston to San Antonio flights are approximately 73% more expensive 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

$70

Fastest flight time

4h 36m

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 $70. The best round-trip flight deal from Boston to San Antonio found on momondo in the last 72 hours is $159.
The fastest flight from Boston to San Antonio takes 4h 36m
Direct flights go from Boston to San Antonio every day.
There is 1 airport near San Antonio: San Antonio (SAT)

  • 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 49m.

  • 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?

  • 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?

  • What is the most popular airline 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
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $137Free CancellationRating
6.3
8,115 reviews
Search Spirit Airlines flights
JetBluePriceFrom $196Free CancellationRating
7.4
3,201 reviews
Search JetBlue flights
American AirlinesPriceFrom $203Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $206Free CancellationRating
7.4
8,985 reviews
Search United Airlines flights
DeltaPriceFrom $235Free CancellationRating
8.0
8,521 reviews
Search Delta flights
SouthwestPriceFrom $256Free CancellationRating
8.1
4,662 reviews
Search Southwest flights
  • Delta Flights From Boston to San Antonio

    Delta flight deals from Boston to San Antonio start from $235 round-trip. Over the 6 Delta flights for this route in a normal week, average airfare is usually $367 round-trip - but some users have found much cheaper deals with momondo.


Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Schertz
Boerne
Pleasanton

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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