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San Salvador

$94+ Cheap flights from Boston (BOS) to San Salvador (SAL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SAL
Aug 15 — Aug 221
Fri 8/15
Fri 8/22
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to San Salvador El Salvador Intl are usually found in September or May, booked 53 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Boston to San Salvador

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to San Salvador (SAL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 10, 2025.

Round-trip from

$260
(Cheapflightsfares)

One-way from

$94
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$519

Good round-trip deal

$414 or less

Good one-way deal

$167 or less
From Boston Logan Intl to San Salvador El Salvador Intl
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One-way flight from Boston Logan Intl to San Salvador El Salvador Intl
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Highest demand for flights based on searches. 14% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Boston Logan Intl to San Salvador El Salvador Intl.
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Price to beat on a one-way flight from Boston Logan Intl to San Salvador El Salvador Intl.
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Find flight deals from Boston to San Salvador

Cheapest flights from Boston to San Salvador
Explore the most affordable flight options available from Boston to San Salvador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:10 amBOS - SAL
1 stop8h 30mSpirit Airlines
Tue 9/231:45 pmSAL - BOS
1 stop8h 12mSpirit Airlines
Deal found 8/8$261
This Copa Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/108:41 amBOS - SAL
1 stop13h 41mCopa Airlines
Thu 9/188:33 amSAL - BOS
1 stop8h 49mCopa Airlines
Deal found 8/9$270
This Cheapflightsfares deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/316:05 amBOS - SAL
1 stop8h 09mSpirit Airlines
Thu 9/41:45 pmSAL - BOS
1 stop8h 12mSpirit Airlines
Deal found 8/9$276
This Copa Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/58:41 amBOS - SAL
1 stop13h 41mCopa Airlines
Thu 9/188:33 amSAL - BOS
1 stop8h 49mCopa Airlines
Deal found 8/10$285
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/239:43 amBOS - SAL
2 stops12h 34mUnited Airlines
Tue 9/306:00 amSAL - BOS
1 stop15h 44mUnited Airlines
Deal found 8/9$287
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:30 amBOS - SAL
1 stop8h 53mUnited Airlines
Fri 9/193:30 pmSAL - BOS
2 stops24h 04mUnited Airlines
Deal found 8/9$291
This FlightHub deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:10 amBOS - SAL
1 stop8h 30mSpirit Airlines
Sun 9/211:45 pmSAL - BOS
1 stop19h 28mSpirit Airlines
Deal found 8/10$294
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:49 pmBOS - SAL
1 stop19h 51mSpirit Airlines
Sun 9/281:45 pmSAL - BOS
1 stop8h 12mSpirit Airlines
Deal found 8/8$295
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:30 amBOS - SAL
1 stop8h 53mUnited Airlines
Sun 10/53:30 pmSAL - BOS
1 stop30h 14mUnited Airlines
Deal found 8/9$296
This SmartFares deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/103:00 pmBOS - SAL
1 stop23h 40mMultiple Airlines
Fri 9/196:40 amSAL - BOS
1 stop28h 43mMultiple Airlines
Deal found 8/10$298
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/255:31 pmBOS - SAL
1 stop22h 52mUnited Airlines
Wed 9/106:00 amSAL - BOS
2 stops15h 22mUnited Airlines
Deal found 8/10$299
This FlightHub deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/63:00 pmBOS - SAL
1 stop23h 40mSpirit Airlines
Sun 9/141:45 pmSAL - BOS
1 stop8h 12mSpirit Airlines
Deal found 8/10$300

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 10, 2025.
Use the filters below to find and compare flights from Boston to San Salvador that are best for you.

Fly from

Boston

Fly to

San Salvador

Route

Depart

Return

Price

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Sun 9/14

6:10 am-12:40 pm

1 stop8h 30m

San Salvador El Salvador Intl

Thu 9/18

1:45 pm-11:57 pm

1 stop8h 12m

$261

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Wed 9/10

8:41 am-8:22 pm

1 stop13h 41m

San Salvador El Salvador Intl

Thu 9/18

8:33 am-7:22 pm

1 stop8h 49m

$270

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Sun 8/31

6:05 am-12:14 pm

1 stop8h 09m

San Salvador El Salvador Intl

Thu 9/4

1:45 pm-11:57 pm

1 stop8h 12m

$276

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Fri 9/5

8:41 am-11:35 pm

1 stop16h 54m

San Salvador El Salvador Intl

Thu 9/18

8:33 am-7:22 pm

1 stop8h 49m

$285

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Tue 9/23

9:43 am-8:17 pm

2 stops12h 34m

San Salvador El Salvador Intl

Tue 9/30

6:00 am-11:44 pm

1 stop15h 44m

$287

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Wed 9/10

7:30 am-2:23 pm

1 stop8h 53m

San Salvador El Salvador Intl

Fri 9/19

3:30 pm-5:34 pm

2 stops24h 04m

$291

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Sun 9/14

6:10 am-12:40 pm

1 stop8h 30m

San Salvador El Salvador Intl

Sun 9/21

1:45 pm-11:13 am

1 stop19h 28m

$294

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Mon 9/8

6:49 pm-12:40 pm

1 stop19h 51m

San Salvador El Salvador Intl

Sun 9/28

1:45 pm-11:57 pm

1 stop8h 12m

$295

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Wed 9/24

7:30 am-2:23 pm

1 stop8h 53m

San Salvador El Salvador Intl

Sun 10/5

3:30 pm-11:44 pm

1 stop30h 14m

$296

BostonSan Salvador

BOS - SAL

BOSSAL

Boston Logan Intl

Wed 9/10

3:00 pm-12:40 pm

1 stop23h 40m

San Salvador El Salvador Intl

Fri 9/19

6:40 am-1:23 pm

1 stop28h 43m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Boston to San Salvador

Have a flexible travel schedule? Discover the best time to fly to San Salvador from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to San Salvador

How far ahead should I book a flight from Boston to San Salvador?

Use this chart to determine the optimal time to book a round-trip flight from Boston to San Salvador. Price data was last updated on August 8, 2025.

The price you pay for your flight from Boston to San Salvador may vary depending on when you book. For the best chance of a lower fare, look to book 53 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to San Salvador?

Currently, September is the cheapest month in which you can book a flight from Boston to San Salvador (average of $260). Flying from Boston to San Salvador in December is currently the most expensive (average of $588). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to SAL?

Find hourly flight availability from Boston to San Salvador. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 10, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 22% on flights from Boston to San Salvador by exploring options for tickets in the evening.

What is the cheapest day to fly from Boston to San Salvador?

Use this chart to determine the cheapest time to fly round-trip from Boston to San Salvador. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to San Salvador flight should consider departing on Friday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What’s the top layover airport for flights from Boston to San Salvador?

Share of 1-stop round-trip flights from Boston to San Salvador chosen by Cheapflights users in the past 12 months, using the same layover each way.

Panama City (PTY) – chosen by Cheapflights users on 52% of 1-stop itineraries from Boston to San Salvador on Cheapflights.

What’s the cheapest layover airport for flights from Boston to San Salvador?

Average round-trip fare for 1-stop flights from Boston to San Salvador, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Fort Lauderdale (FLL) is the most affordable 1-stop option, with an average round-trip price of $465.

What’s the fastest layover option from Boston to San Salvador?

Shortest average travel time for 1-stop one-way flights from Boston to San Salvador, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 8h 38m.

Which airport typically offers the quickest layover for flights from Boston to San Salvador?

Average layover duration for 1-stop one-way flights from Boston to San Salvador, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 1h 49m.

Reviews of airlines servicing San Salvador

Get insights into the airlines that provide service to San Salvador. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Salvador. Reviews last updated August 10, 2025.
Read reviews from past customers who have flown Delta, Copa Airlines, and United Airlines from Boston to San Salvador. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Copa Airlines
7.5
Good
1,505 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,920 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Avianca
6.7
Okay
2,397 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Boston to San Salvador. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Boston to San Salvador flight route?

    This flight path from Boston Logan Intl to San Salvador El Salvador Intl was viewed by 58 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Boston to San Salvador round-trip?

    According to our current data, Spirit Airlines ($261), and Copa Airlines ($270) offers the cheapest pricing from Boston to San Salvador. You may be able to fly from Boston to San Salvador for 49% less than the average price by searching for these airlines.

  • What are the cheapest flights from Boston to San Salvador?

    While on average a flight from Boston to San Salvador is generally $448, our data shows the cheapest flight currently is $128. When looking at the most popular route, (Boston Logan Intl - San Salvador El Salvador Intl), you can expect to pay $214 for that flight.

  • Where are the most common layover locations when flying from Boston to San Salvador?

    Of the flights from Boston to San Salvador that have layovers, most of them stop in Miami. Panama City is the second most popular location for layovers on flights from Boston to San Salvador.

  • What are some popular things to do or see while on a layover in Miami?

    Wynwood Art District, Bayfront Park, and Kaseya Center are currently the most popular points of interest in Miami at the moment. Wynwood Art District, Bayfront Park, and Kaseya Center can be accessed by traveling approximately 5.5 mi, 6.4 mi, and 6.2 mi, respectively from Miami. Those on a layover in Miami in need of a rental car can book one at Miami for about $29.

  • What are some popular points of interest to see during a layover in Panama City?

    Most Panama City visitors opt to spend their time at Panama Old Cathedral, Amador Causeway, and Panama Canal. Those on a layover in Panama City interested in visiting Panama Old Cathedral, Amador Causeway, or Panama Canal can do so by traveling 13.2 mi, 14.7 mi, and 15.1 mi, respectively from Panama City Tocumen Intl. Those looking to explore during their layover in Panama City can rent a car from Panama City Tocumen Intl for about $13 per day.

  • Where are the least popular layover locations for Boston to San Salvador flights?

    Flights departing from Boston and landing in San Salvador layover in Atlanta least frequently.

  • Can I find deals for flights from Boston to San Salvador that include hotel bookings?

    Yes. In addition to deals on Boston to San Salvador flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to San Salvador?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to San Salvador.

  • Can I find deals for business class flights from Boston to San Salvador?

    Yes. Cheapflights offers flight deals from Boston to San Salvador by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to San Salvador?

    Currently, September is the cheapest month in which you can book a flight from Boston to San Salvador (average of $260). Flying from Boston to San Salvador in December is currently the most expensive (average of $588). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Salvador?

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

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Alternative routes for Boston to San Salvador

See prices for flight routes from nearby airports that may be better suited for you.
Hartford to San Salvador flights
Albany to San Salvador flights
Worcester to San Salvador flights

Top 6 airlines flying from Boston to San Salvador

Discover the top 6 airlines that operate flights from Boston to San Salvador. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$154Average$363FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$229Average$552FlexibilityNo cancel feeOn-time69%
Copa AirlinesCheapest$249Average$423FlexibilityNo cancel feeOn-time70%
DeltaCheapest$254Average$521FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$280Average$556FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$317Average$577FlexibilityNo cancel feeOn-time71%

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