Cheap flights from Boston to San Salvador from $115

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 Salvador departing on 4/13. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:45 am - 10:05 pm
BOS
-
SAL
18h 20m
1 stop
Frontier Logo
1:37 pm - 1:31 am
SAL
-
BOS
9h 54m
1 stop
$291Frontier
Wed, Apr 8 - Mon, Apr 20
Frontier Logo
5:30 am - 10:45 pm
BOS
-
SAL
19h 15m
1 stop
Frontier Logo
1:37 pm - 1:31 am
SAL
-
BOS
9h 54m
1 stop
$299Frontier
Sun, Apr 12 - Mon, Apr 20
Frontier Logo
12:42 pm - 8:23 am
BOS
-
SAL
21h 41m
2 stops
Frontier Logo
11:50 pm - 11:57 am
SAL
-
BOS
10h 07m
1 stop
$301Frontier
Tue, Apr 7 - Mon, Apr 13
Spirit Airlines Logo
5:27 am - 1:56 pm
BOS
-
SAL
10h 29m
1 stop
Spirit Airlines Logo
2:53 pm - 11:59 pm
SAL
-
BOS
7h 06m
1 stop
$303Spirit Airlines
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
5:27 am - 4:01 pm
BOS
-
SAL
35h 34m
3 stops
Multiple Airlines Logo
7:34 am - 11:59 pm
SAL
-
BOS
15h 25m
1 stop
$304Multiple Airlines
Tue, Mar 3 - Fri, Mar 6
Frontier Logo
12:47 pm - 10:45 pm
BOS
-
SAL
11h 58m
1 stop
Frontier Logo
11:50 pm - 11:45 am
SAL
-
BOS
9h 55m
1 stop
$306Frontier
Sun, Apr 5 - Sun, Apr 12
Multiple Airlines Logo
6:01 am - 8:56 pm
BOS
-
SAL
16h 55m
1 stop
Multiple Airlines Logo
10:49 pm - 10:10 pm
SAL
-
BOS
21h 21m
2 stops
$307Multiple Airlines
Sun, Apr 12 - Mon, Apr 20
Frontier Logo
11:46 am - 10:58 am
BOS
-
SAL
25h 12m
1 stop
Frontier Logo
11:50 pm - 11:45 am
SAL
-
BOS
9h 55m
1 stop
$311Frontier
Sat, Apr 4 - Sun, Apr 12
Multiple Airlines Logo
6:01 am - 5:36 pm
BOS
-
SAL
13h 35m
2 stops
Multiple Airlines Logo
7:45 am - 2:50 pm
SAL
-
BOS
5h 05mnonstop
$314Multiple Airlines
Mon, Mar 23 - Fri, Apr 3
Spirit Airlines Logo
5:27 am - 2:56 pm
BOS
-
SAL
10h 29m
1 stop
Spirit Airlines Logo
2:53 pm - 11:59 pm
SAL
-
BOS
7h 06m
1 stop
$315Spirit Airlines
Tue, Mar 3 - Thu, Mar 12

Frontier flights from Boston to San Salvador

Our best Frontier deals on Boston to San Salvador flight tickets
Frontier
Apr 8
BOS5:45 amBoston Logan Intl
18h 20m
1 stop
SAL10:05 pmSan Salvador El Salvador Intl
Apr 20
SAL1:37 pmSan Salvador El Salvador Intl
9h 54m
1 stop
BOS1:31 amBoston Logan Intl
$291
Frontier
Apr 12
BOS5:30 amBoston Logan Intl
19h 15m
1 stop
SAL10:45 pmSan Salvador El Salvador Intl
Apr 20
SAL1:37 pmSan Salvador El Salvador Intl
9h 54m
1 stop
BOS1:31 amBoston Logan Intl
$299
Frontier
Apr 7
BOS12:42 pmBoston Logan Intl
21h 41m
2 stops
SAL8:23 amSan Salvador El Salvador Intl
Apr 13
SAL11:50 pmSan Salvador El Salvador Intl
10h 07m
1 stop
BOS11:57 amBoston Logan Intl
$301

Spirit Airlines flights from Boston to San Salvador

Our best Spirit Airlines deals on Boston to San Salvador flight tickets
Spirit Airlines
Mar 10
BOS5:27 amBoston Logan Intl
10h 29m
1 stop
SAL1:56 pmSan Salvador El Salvador Intl
Mar 17
SAL2:53 pmSan Salvador El Salvador Intl
7h 06m
1 stop
BOS11:59 pmBoston Logan Intl
$303
Spirit Airlines
Mar 3
BOS5:27 amBoston Logan Intl
10h 29m
1 stop
SAL2:56 pmSan Salvador El Salvador Intl
Mar 12
SAL2:53 pmSan Salvador El Salvador Intl
7h 06m
1 stop
BOS11:59 pmBoston Logan Intl
$315
Spirit Airlines
Mar 10
BOS5:27 amBoston Logan Intl
10h 29m
1 stop
SAL1:56 pmSan Salvador El Salvador Intl
Mar 24
SAL2:53 pmSan Salvador El Salvador Intl
21h 02m
1 stop
BOS1:55 pmBoston Logan Intl
$341

momondo Fare Finder

 
Customize your flight search to find flights from Boston to San Salvador 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 February 24, 2026.
Use the filters below to find and compare flights from Boston to San Salvador that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Wed 4/8

5:45 am-10:05 pm

1 stop18h 20m

San Salvador El Salvador Intl

Mon 4/20

1:37 pm-1:31 am

1 stop9h 54m

$291

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Sun 4/12

5:30 am-10:45 pm

1 stop19h 15m

San Salvador El Salvador Intl

Mon 4/20

1:37 pm-1:31 am

1 stop9h 54m

$299

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Tue 4/7

12:42 pm-8:23 am

2 stops21h 41m

San Salvador El Salvador Intl

Mon 4/13

11:50 pm-11:57 am

1 stop10h 07m

$301

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Tue 3/10

5:27 am-1:56 pm

1 stop10h 29m

San Salvador El Salvador Intl

Tue 3/17

2:53 pm-11:59 pm

1 stop7h 06m

$303

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Tue 3/3

5:27 am-4:01 pm

3 stops35h 34m

San Salvador El Salvador Intl

Fri 3/6

7:34 am-11:59 pm

1 stop15h 25m

$304

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Sun 4/5

12:47 pm-10:45 pm

1 stop11h 58m

San Salvador El Salvador Intl

Sun 4/12

11:50 pm-11:45 am

1 stop9h 55m

$306

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Sun 4/12

6:01 am-8:56 pm

1 stop16h 55m

San Salvador El Salvador Intl

Mon 4/20

10:49 pm-10:10 pm

2 stops21h 21m

$307

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Sat 4/4

11:46 am-10:58 am

1 stop25h 12m

San Salvador El Salvador Intl

Sun 4/12

11:50 pm-11:45 am

1 stop9h 55m

$311

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Mon 3/23

6:01 am-5:36 pm

2 stops13h 35m

San Salvador El Salvador Intl

Fri 4/3

7:45 am-2:50 pm

Nonstop5h 05m

$314

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Tue 3/3

5:27 am-2:56 pm

1 stop10h 29m

San Salvador El Salvador Intl

Thu 3/12

2:53 pm-11:59 pm

1 stop7h 06m

$315

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 San Salvador from

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

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 Salvador?

If you aren’t able to travel to San Salvador during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $344.

What is the cheapest day to depart on your flight to San Salvador?

On average, the least expensive day to fly to San Salvador from Boston is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $408. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to San Salvador on Thursday is $671.

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

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

How far in advance should I book a flight to San Salvador?

You are more likely to see cheaper flights to San Salvador from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Salvador for around $455 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Salvador from Boston for as low as $383 on momondo.

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

There are 3 cabin classes available to choose from on Boston Logan Intl to San Salvador El Salvador Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to San Salvador flights?

You could potentially save up to 13% on your flight if you consider stops on a Boston to San Salvador flight.

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

As of February 2026, prices for Boston to San Salvador flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from Boston to San Salvador

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

Cheap Boston to San Salvador (BOS to SAL) flight deals and tips

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

Best Price Found

$169

Fastest flight time

5h 25m

Direct flights

Every day

Airports in San Salvador

1 airport
The best one-way flight to San Salvador from Boston in the past 72 hours is $169. The best round-trip flight deal from Boston to San Salvador found on momondo in the last 72 hours is $362.
The fastest flight from Boston to San Salvador takes 5h 25m
Direct flights go from Boston to San Salvador every day.
There is 1 airport in San Salvador. From Boston there are direct flights to San Salvador El Salvador Intl (SAL).
  • How far is Boston Logan Intl to San Salvador El Salvador Intl by plane?

    San Salvador El Salvador Intl is 2256.2 mi away from Boston Logan Intl. A reasonable flight in good conditions will take 5h 25m.

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

    Prices for flights from Boston Logan Intl Airport to San Salvador El Salvador Intl Airport are updated daily.

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

  • How old do you have to be to fly from Boston Logan Intl Airport to San Salvador El Salvador Intl 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 Salvador El Salvador Intl Airport.

  • What documentation or ID do you need to fly to San Salvador El Salvador Intl Airport?

    The travel and health documents you'll need for your trip to San Salvador El Salvador 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 San Salvador El Salvador 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 Boston to San Salvador?

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

Best airlines flying from Boston to San Salvador

Compare and see reviews for airlines that fly from Boston to San Salvador with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $92Free CancellationRating
7.5
1,556 reviews
Search Copa Airlines flights
Spirit AirlinesPriceFrom $121Free CancellationRating
6.3
8,493 reviews
Search Spirit Airlines flights
DeltaPriceFrom $124Free CancellationRating
7.9
8,238 reviews
Search Delta flights
United AirlinesPriceFrom $150Free CancellationRating
7.4
9,344 reviews
Search United Airlines flights
FrontierPriceFrom $160Free CancellationRating
5.7
3,043 reviews
Search Frontier flights
AviancaPriceFrom $200Free CancellationRating
6.6
2,497 reviews
Search Avianca flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,344 reviews
Search American Airlines flights
  • Avianca Flights From Boston to San Salvador

    Avianca is one of the most popular airlines flying from Boston to San Salvador, operating 3 flights/week on average for this route. A good Avianca flight deal for Boston to San Salvador starts from $200 round-trip, up to an average price of $455. Our users have rated Avianca at 6.6/10.

Traveling to a place near San Salvador?

Book flights to San Salvador if you plan to visit one of these locations
Sonsonate
Acajutla
La Libertad
El Cuco

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to San Salvador for you.

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

Yes. All flights to San Salvador from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to San Salvador.

I’m not ready to book a flight from Boston to San Salvador right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boston to San Salvador flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Thu 3/26
Thu 4/2

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