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Cheap flights from Boston to San Salvador from $94

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 9/2. 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 Boston to San Salvador (BOS-SAL)

Cheap round-trip flights

Spirit Airlines Logo
6:10 am - 12:40 pmBOS-SAL
8h 30m1 stop
Spirit Airlines Logo
1:45 pm - 11:13 amSAL-BOS
19h 28m1 stop
$254Spirit Airlines
Find Deal
Tue, Sep 23 - Tue, Sep 30
Spirit Airlines Logo
6:10 am - 12:40 pmBOS-SAL
8h 30m1 stop
Spirit Airlines Logo
1:45 pm - 11:57 pmSAL-BOS
8h 12m1 stop
$255Spirit Airlines
Find Deal
Thu, Sep 11 - Tue, Sep 16
Logo
8:41 am - 12:36 pmBOS-SAL
29h 55m1 stop
Logo
1:45 pm - 11:57 pmSAL-BOS
8h 12m1 stop
$259
Find Deal
Tue, Sep 9 - Tue, Sep 16
Logo
8:41 am - 8:22 pmBOS-SAL
13h 41m1 stop
Logo
1:45 pm - 11:57 pmSAL-BOS
8h 12m1 stop
$260
Find Deal
Mon, Sep 8 - Tue, Sep 16
Copa Airlines Logo
8:41 am - 11:35 pmBOS-SAL
16h 54m1 stop
Copa Airlines Logo
1:42 pm - 2:11 pmSAL-BOS
22h 29m1 stop
$261Copa Airlines
Find Deal
Tue, Sep 9 - Wed, Sep 17
United Airlines Logo
9:30 am - 9:19 pmBOS-SAL
12h 49m2 stops
United Airlines Logo
11:54 pm - 9:14 amSAL-BOS
8h 20m1 stop
$264United Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
Copa Airlines Logo
3:49 pm - 11:35 pmBOS-SAL
9h 46m1 stop
Copa Airlines Logo
8:33 am - 7:22 pmSAL-BOS
8h 49m1 stop
$269Copa Airlines
Find Deal
Tue, Sep 16 - Fri, Sep 26
United Airlines Logo
1:30 pm - 10:47 pmBOS-SAL
10h 17m1 stop
United Airlines Logo
11:54 pm - 9:14 amSAL-BOS
8h 20m1 stop
$287United Airlines
Find Deal
Sun, Jan 18 - Wed, Jan 28
American Airlines Logo
8:37 pm - 11:35 amBOS-SAL
16h 58m2 stops
American Airlines Logo
12:35 pm - 7:55 amSAL-BOS
17h 20m2 stops
$298American Airlines
Find Deal
Tue, Sep 16 - Wed, Sep 24
American Airlines Logo
8:37 pm - 11:35 amBOS-SAL
16h 58m2 stops
American Airlines Logo
12:35 pm - 7:14 amSAL-BOS
16h 39m2 stops
$318American Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17

Spirit Airlines flights from Boston to San Salvador

Our best Spirit Airlines deals on Boston to San Salvador flight tickets
Spirit Airlines
Sep 23
BOS6:10 amBoston Logan Intl
8h 30m
1 stop
SAL12:40 pmSan Salvador El Salvador Intl
Sep 30
SAL1:45 pmSan Salvador El Salvador Intl
19h 28m
1 stop
BOS11:13 amBoston Logan Intl
$254
Find similar
Spirit Airlines
Sep 11
BOS6:10 amBoston Logan Intl
8h 30m
1 stop
SAL12:40 pmSan Salvador El Salvador Intl
Sep 16
SAL1:45 pmSan Salvador El Salvador Intl
8h 12m
1 stop
BOS11:57 pmBoston Logan Intl
$255
Find similar
Spirit Airlines
Sep 4
BOS6:10 amBoston Logan Intl
8h 30m
1 stop
SAL12:40 pmSan Salvador El Salvador Intl
Sep 9
SAL1:45 pmSan Salvador El Salvador Intl
8h 12m
1 stop
BOS11:57 pmBoston Logan Intl
$259
Find similar

Copa Airlines flights from Boston to San Salvador

Our best Copa Airlines deals on Boston to San Salvador flight tickets
Copa Airlines
Sep 9
BOS8:41 amBoston Logan Intl
16h 54m
1 stop
SAL11:35 pmSan Salvador El Salvador Intl
Sep 17
SAL1:42 pmSan Salvador El Salvador Intl
22h 29m
1 stop
BOS2:11 pmBoston Logan Intl
$261
Find similar
Copa Airlines
Sep 16
BOS3:49 pmBoston Logan Intl
9h 46m
1 stop
SAL11:35 pmSan Salvador El Salvador Intl
Sep 26
SAL8:33 amSan Salvador El Salvador Intl
8h 49m
1 stop
BOS7:22 pmBoston Logan Intl
$269
Find similar
Copa Airlines
Sep 10
BOS8:41 amBoston Logan Intl
13h 41m
1 stop
SAL8:22 pmSan Salvador El Salvador Intl
Sep 17
SAL8:33 amSan Salvador El Salvador Intl
8h 49m
1 stop
BOS7:22 pmBoston Logan Intl
$270
Find similar

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 August 28, 2025.
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

Tue 9/23

6:10 am-12:40 pm

1 stop8h 30m

San Salvador El Salvador Intl

Tue 9/30

1:45 pm-11:13 am

1 stop19h 28m

$254

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Thu 9/11

6:10 am-12:40 pm

1 stop8h 30m

San Salvador El Salvador Intl

Tue 9/16

1:45 pm-11:57 pm

1 stop8h 12m

$255

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Tue 9/9

8:41 am-12:36 pm

1 stop29h 55m

San Salvador El Salvador Intl

Tue 9/16

1:45 pm-11:57 pm

1 stop8h 12m

$259

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Mon 9/8

8:41 am-8:22 pm

1 stop13h 41m

San Salvador El Salvador Intl

Tue 9/16

1:45 pm-11:57 pm

1 stop8h 12m

$260

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Tue 9/9

8:41 am-11:35 pm

1 stop16h 54m

San Salvador El Salvador Intl

Wed 9/17

1:42 pm-2:11 pm

1 stop22h 29m

$261

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Wed 1/28

9:30 am-9:19 pm

2 stops12h 49m

San Salvador El Salvador Intl

Sun 2/1

11:54 pm-9:14 am

1 stop8h 20m

$264

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Tue 9/16

3:49 pm-11:35 pm

1 stop9h 46m

San Salvador El Salvador Intl

Fri 9/26

8:33 am-7:22 pm

1 stop8h 49m

$269

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Sun 1/18

1:30 pm-10:47 pm

1 stop10h 17m

San Salvador El Salvador Intl

Wed 1/28

11:54 pm-9:14 am

1 stop8h 20m

$287

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Tue 9/16

8:37 pm-11:35 am

2 stops16h 58m

San Salvador El Salvador Intl

Wed 9/24

12:35 pm-7:55 am

2 stops17h 20m

$298

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Wed 9/10

8:37 pm-11:35 am

2 stops16h 58m

San Salvador El Salvador Intl

Wed 9/17

12:35 pm-7:14 am

2 stops16h 39m

$318

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $387.

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 $479. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to San Salvador on Saturday is $600.

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

Our most recent data shows that the best time of day to fly to San Salvador is in the evening. Flights from Boston to San Salvador during this time can be as low as $429. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $559 on average. Flights to San Salvador from Boston at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $517 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 $452 on momondo.

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

There is only 1 cabin class 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 1% 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 August 2025, prices for Boston to San Salvador flights are approximately 33% 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

$187

Fastest flight time

5h 25m

Direct flights

Mon, Tue, Thu and Sat

Airports in San Salvador

1 airport
The best one-way flight to San Salvador from Boston in the past 72 hours is $187. The best round-trip flight deal from Boston to San Salvador found on momondo in the last 72 hours is $358.
The fastest flight from Boston to San Salvador takes 5h 25m
Direct flights go from Boston to San Salvador on Monday, Tuesday, Thursday and Saturday. The only airline offering direct flights is Avianca.
There is 1 airport near San Salvador: San Salvador El Salvador Intl (SAL)
Search flight deals

  • 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
Spirit AirlinesPriceFrom $154Free CancellationRating
6.3
8,028 reviews
Search Spirit Airlines flights
Copa AirlinesPriceFrom $229Free CancellationRating
7.5
1,517 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $234Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
DeltaPriceFrom $239Free CancellationRating
7.9
7,977 reviews
Search Delta flights
AviancaPriceFrom $279Free CancellationRating
6.7
2,420 reviews
Search Avianca flights
American AirlinesPriceFrom $324Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
FrontierPriceFrom $413Free CancellationRating
5.8
3,204 reviews
Search Frontier flights

  • Avianca Flights From Boston to San Salvador

    Avianca is one of the most popular airlines flying from Boston to San Salvador, operating 4 flights/week on average for this route. A good Avianca flight deal for Boston to San Salvador starts from $279 round-trip, up to an average price of $553. Our users have rated Avianca at 6.7/10.

Traveling to a place near San Salvador?

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

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.

An easier way to manage your San Salvador trip

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Fly your favorite airline to San Salvador

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Delta
American Airlines
United Airlines
Turkish Airlines
Lufthansa
Frontier
British Airways
Qatar Airways
Spirit Airlines
Ryanair
Emirates
Alaska Airlines