Cheap flights from Boston to San Salvador from $103

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 3/18. 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.
Multiple Airlines Logo
5:27 am - 2:56 pm
BOS
-
SAL
10h 29m
1 stop
Multiple Airlines Logo
2:41 pm - 11:35 am
SAL
-
BOS
19h 54m
2 stops
$294Multiple Airlines
dom., feb. 22 - sáb., feb. 28
Spirit Airlines Logo
6:10 pm - 1:48 pm
BOS
-
SAL
21h 38m
1 stop
Spirit Airlines Logo
2:53 pm - 11:59 pm
SAL
-
BOS
7h 06m
1 stop
$296Spirit Airlines
mié., mar. 11 - mar., mar. 31
Spirit Airlines Logo
8:32 pm - 2:56 pm
BOS
-
SAL
19h 24m
1 stop
Spirit Airlines Logo
4:02 pm - 5:15 pm
SAL
-
BOS
24h 13m
1 stop
$298Spirit Airlines
sáb., feb. 21 - mar., mar. 3
Multiple Airlines Logo
6:10 pm - 1:56 pm
BOS
-
SAL
20h 46m
1 stop
Multiple Airlines Logo
2:53 pm - 11:41 am
SAL
-
BOS
18h 48m
2 stops
$299Multiple Airlines
sáb., mar. 7 - jue., mar. 12
Multiple Airlines Logo
5:45 am - 1:48 pm
BOS
-
SAL
10h 03m
1 stop
Multiple Airlines Logo
6:45 pm - 1:55 pm
SAL
-
BOS
17h 10m
1 stop
$300Multiple Airlines
mar., mar. 24 - vie., abr. 3
Delta Logo
8:50 pm - 12:39 pm
BOS
-
SAL
17h 49m
1 stop
Delta Logo
2:04 pm - 9:34 am
SAL
-
BOS
17h 30m
1 stop
$301Delta
dom., abr. 19 - mar., abr. 28
Frontier Logo
6:00 am - 12:32 pm
BOS
-
SAL
8h 32m
1 stop
Frontier Logo
1:42 pm - 12:51 am
SAL
-
BOS
9h 09m
1 stop
$302Frontier
vie., may. 8 - vie., may. 15
Multiple Airlines Logo
6:01 am - 9:19 pm
BOS
-
SAL
17h 18m
1 stop
Multiple Airlines Logo
2:53 pm - 11:59 pm
SAL
-
BOS
7h 06m
1 stop
$303Multiple Airlines
mié., mar. 25 - mar., abr. 7
Multiple Airlines Logo
5:45 am - 1:48 pm
BOS
-
SAL
10h 03m
1 stop
Multiple Airlines Logo
7:45 am - 2:50 pm
SAL
-
BOS
5h 05mnonstop
$304Multiple Airlines
mar., mar. 24 - vie., abr. 3
United Airlines Logo
7:25 am - 8:49 pm
BOS
-
SAL
15h 24m
1 stop
United Airlines Logo
3:40 pm - 9:39 am
SAL
-
BOS
15h 59m
2 stops
$305United Airlines
sáb., may. 9 - sáb., may. 23

Spirit Airlines flights from Boston to San Salvador

Our best Spirit Airlines deals on Boston to San Salvador flight tickets
Spirit Airlines
Mar 11
BOS6:10 pmBoston Logan Intl
21h 38m
1 stop
SAL1:48 pmSan Salvador El Salvador Intl
Mar 31
SAL2:53 pmSan Salvador El Salvador Intl
7h 06m
1 stop
BOS11:59 pmBoston Logan Intl
$296
Spirit Airlines
Feb 21
BOS8:32 pmBoston Logan Intl
19h 24m
1 stop
SAL2:56 pmSan Salvador El Salvador Intl
Mar 3
SAL4:02 pmSan Salvador El Salvador Intl
24h 13m
1 stop
BOS5:15 pmBoston Logan Intl
$298
Spirit Airlines
Mar 8
BOS5:27 amBoston Logan Intl
10h 29m
1 stop
SAL1:56 pmSan Salvador El Salvador Intl
Mar 12
SAL2:53 pmSan Salvador El Salvador Intl
19h 30m
1 stop
BOS12:23 pmBoston Logan Intl
$309

Delta flights from Boston to San Salvador

Our best Delta deals on Boston to San Salvador flight tickets
Delta
Apr 19
BOS8:50 pmBoston Logan Intl
17h 49m
1 stop
SAL12:39 pmSan Salvador El Salvador Intl
Apr 28
SAL2:04 pmSan Salvador El Salvador Intl
17h 30m
1 stop
BOS9:34 amBoston Logan Intl
$301
Delta
Feb 23
BOS5:35 amBoston Logan Intl
8h 35m
1 stop
SAL1:10 pmSan Salvador El Salvador Intl
Mar 4
SAL2:35 pmSan Salvador El Salvador Intl
9h 34m
1 stop
BOS1:09 amBoston Logan Intl
$381

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 febrero 9, 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

dom. 2/22

5:27 am-2:56 pm

1 stop10h 29m

San Salvador El Salvador Intl

sáb. 2/28

2:41 pm-11:35 am

2 stops19h 54m

$294

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

mié. 3/11

6:10 pm-1:48 pm

1 stop21h 38m

San Salvador El Salvador Intl

mar. 3/31

2:53 pm-11:59 pm

1 stop7h 06m

$296

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

sáb. 2/21

8:32 pm-2:56 pm

1 stop19h 24m

San Salvador El Salvador Intl

mar. 3/3

4:02 pm-5:15 pm

1 stop24h 13m

$298

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

sáb. 3/7

6:10 pm-1:56 pm

1 stop20h 46m

San Salvador El Salvador Intl

jue. 3/12

2:53 pm-11:41 am

2 stops18h 48m

$299

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

mar. 3/24

5:45 am-1:48 pm

1 stop10h 03m

San Salvador El Salvador Intl

vie. 4/3

6:45 pm-1:55 pm

1 stop17h 10m

$300

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

dom. 4/19

8:50 pm-12:39 pm

1 stop17h 49m

San Salvador El Salvador Intl

mar. 4/28

2:04 pm-9:34 am

1 stop17h 30m

$301

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

vie. 5/8

6:00 am-12:32 pm

1 stop8h 32m

San Salvador El Salvador Intl

vie. 5/15

1:42 pm-12:51 am

1 stop9h 09m

$302

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

mié. 3/25

6:01 am-9:19 pm

1 stop17h 18m

San Salvador El Salvador Intl

mar. 4/7

2:53 pm-11:59 pm

1 stop7h 06m

$303

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

mar. 3/24

5:45 am-1:48 pm

1 stop10h 03m

San Salvador El Salvador Intl

vie. 4/3

7:45 am-2:50 pm

Nonstop5h 05m

$304

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

sáb. 5/9

7:25 am-8:49 pm

1 stop15h 24m

San Salvador El Salvador Intl

sáb. 5/23

3:40 pm-9:39 am

2 stops15h 59m

$305

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 $349.

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 $398. 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 $478 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 22% 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

$145

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 $145. The best round-trip flight deal from Boston to San Salvador found on momondo in the last 72 hours is $375.
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
1,557 reviews
Search Copa Airlines flights
Spirit AirlinesPriceFrom $121Free CancellationRating
6.3
8,431 reviews
Search Spirit Airlines flights
DeltaPriceFrom $140Free CancellationRating
7.9
8,173 reviews
Search Delta flights
United AirlinesPriceFrom $150Free CancellationRating
7.4
9,259 reviews
Search United Airlines flights
FrontierPriceFrom $160Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
AviancaPriceFrom $219Free CancellationRating
6.5
2,496 reviews
Search Avianca flights
American AirlinesPriceFrom $271Free CancellationRating
7.2
11,258 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 4 flights/week on average for this route. A good Avianca flight deal for Boston to San Salvador starts from $219 round-trip, up to an average price of $476. Our users have rated Avianca at 6.5/10.

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
mié. 3/11
mié. 3/18

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