$312+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SAL
Sep 11 — Sep 181
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Boston to San Salvador with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Boston Logan Intl to San Salvador El Salvador Intl are usually found in October or January, booked 12 days in advance, depart on a Monday or Sunday and return on a Saturday
Cheap flight deals from Boston to San Salvador
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to San SalvadorExplore 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 12, 2026.
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 12, 2026.
This Faresmojo deal was found by Cheapflights users on 8/12. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:45 pm -
1 stop17h 47m
Fri 10/231:57 pm -
1 stop9h 23m
Deal found 8/12![JetBlue logo]()
$511
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am -
1 stop7h 24m
Fri 10/212:24 pm -
2 stops19h 15m
Deal found 8/11![American Airlines logo]()
$513
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:30 am -
1 stop9h 02m
Thu 9/31:57 pm -
1 stop9h 28m
Deal found 8/11![Delta logo]()
$521
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/223:25 pm -
Nonstop5h 50m
Mon 11/238:00 am -
1 stop21h 35m
Deal found 8/10![Avianca logo]()
$523
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.
Sat 8/225:45 am -
2 stops10h 45m
Sat 9/56:00 am -
2 stops15h 34m
Deal found 8/10![United Airlines logo]()
$525
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:00 am -
1 stop8h 31m
Thu 4/12:47 pm -
1 stop17h 15m
Deal found 8/8![American Airlines logo]()
$526
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Sat 11/75:57 pm -
1 stop29h 50m
Tue 11/174:40 pm -
1 stop18h 45m
Deal found 8/7![United Airlines logo]()
$527
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:35 am -
1 stop7h 54m
Thu 9/312:29 pm -
1 stop10h 29m
Deal found 8/12![American Airlines logo]()
$530
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:50 pm -
2 stops17h 58m
Fri 9/2512:24 pm -
2 stops18h 55m
Deal found 8/12![American Airlines logo]()
$531
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:25 pm -
1 stop21h 59m
Wed 9/3012:24 pm -
1 stop10h 35m
Deal found 8/11![American Airlines logo]()
$534
Best flights from Boston to San SalvadorDiscover carefully curated flight deals from Boston to San Salvador that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
Discover carefully curated flight deals from Boston to San Salvador that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/221:41 pm -
1 stop9h 08m
Sat 10/36:00 am -
1 stop9h 29m
Deal found 8/11![United Airlines logo]()
$521
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:55 am -
1 stop7h 36m
Sat 9/191:57 pm -
1 stop9h 20m
Deal found 8/7![Delta logo]()
$521
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Fri 9/1812:37 pm -
2 stops25h 38m
Sat 9/261:50 pm -
2 stops17h 54m
Deal found 8/7![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 11/2711:55 am -
2 stops28h 29m
Sat 12/51:10 am -
1 stop12h 13m
Deal found 8/11![United Airlines logo]()
$525
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.
Sun 2/76:00 am -
3 stops16h 19m
Thu 3/44:40 pm -
2 stops19h 07m
Deal found 8/9![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Sat 9/127:25 am -
1 stop15h 24m
Sun 9/206:00 am -
2 stops26h 18m
Deal found 8/7![United Airlines logo]()
$525
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.
Sat 9/196:00 am -
3 stops16h 49m
Thu 9/246:00 am -
2 stops15h 24m
Deal found 8/10![United Airlines logo]()
$525
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.
Fri 10/306:36 pm -
2 stops19h 43m
Sat 11/141:10 am -
1 stop12h 22m
Deal found 8/10![United Airlines logo]()
$525
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:00 am -
3 stops16h 19m
Tue 12/111:54 pm -
1 stop11h 49m
Deal found 8/8![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 8/7. 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 11/46:00 am -
3 stops16h 19m
Sat 11/144:40 pm -
2 stops19h 01m
Deal found 8/7![United Airlines logo]()
$525
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 am -
3 stops16h 49m
Sat 8/293:40 pm -
2 stops15h 56m
Deal found 8/8![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 9/247:55 am -
2 stops14h 54m
Tue 9/296:00 am -
1 stop9h 29m
Deal found 8/11![United Airlines logo]()
$525
Last-minute flights from Boston to San SalvadorDiscover last-minute flight deals from Boston to San Salvador. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to San Salvador. Data last updated August 12, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:35 am -
1 stop7h 54m
Thu 9/312:29 pm -
1 stop10h 29m
Deal found 8/12![American Airlines logo]()
$530
This Faresmojo deal was found by Cheapflights users on 8/12. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:45 pm -
1 stop17h 47m
Fri 10/231:57 pm -
1 stop9h 23m
Deal found 8/12![JetBlue logo]()
$511
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.
Sat 8/225:45 am -
2 stops10h 45m
Sat 9/56:00 am -
2 stops15h 34m
Deal found 8/10![United Airlines logo]()
$525
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:30 am -
1 stop9h 02m
Thu 9/31:57 pm -
1 stop9h 28m
Deal found 8/11![Delta logo]()
$521
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:50 pm -
2 stops17h 58m
Fri 9/2512:24 pm -
2 stops18h 55m
Deal found 8/10![American Airlines logo]()
$527
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:00 am -
1 stop8h 29m
Sun 9/2712:24 pm -
1 stop9h 05m
Deal found 8/11![American Airlines logo]()
$526
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.
Fri 9/188:30 pm -
1 stop27h 05m
Wed 9/236:00 am -
2 stops15h 30m
Deal found 8/10![United Airlines logo]()
$532
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:25 pm -
1 stop21h 59m
Wed 9/3012:24 pm -
1 stop10h 35m
Deal found 8/11![American Airlines logo]()
$534
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am -
1 stop7h 24m
Fri 10/212:24 pm -
2 stops19h 15m
Deal found 8/11![American Airlines logo]()
$513
One-way flights from Boston to San SalvadorSearch for one-way flight options from Boston to San Salvador. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
Search for one-way flight options from Boston to San Salvador. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This Faresmojo deal was found by Cheapflights users on 8/11. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:50 am -
1 stop7h 42m
Deal found 8/11![JetBlue logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 8/2412:45 pm -
2 stops30h 04m
Deal found 8/11![Multiple Airlines logo]()
$318
This Faresmojo deal was found by Cheapflights users on 8/11. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:30 am -
1 stop9h 02m
Deal found 8/11![JetBlue logo]()
$320
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:35 pm -
2 stops30h 05m
Deal found 8/9![Multiple Airlines logo]()
$321
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/610:20 pm -
2 stops14h 15m
Deal found 8/10![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Sun 9/2010:20 pm -
2 stops14h 15m
Deal found 8/11![Multiple Airlines logo]()
$323
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:20 pm -
2 stops14h 15m
Deal found 8/9![Multiple Airlines logo]()
$324
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:20 pm -
2 stops14h 15m
Deal found 8/9![Multiple Airlines logo]()
$325
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.
Thu 9/102:20 pm -
2 stops31h 55m
Deal found 8/8![Multiple Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:30 am -
1 stop9h 01m
Deal found 8/11![Delta logo]()
$330
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:45 pm -
2 stops30h 04m
Deal found 8/10![Multiple Airlines logo]()
$332
Find 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 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $513 (American Airlines) |
One-way from | $312 (Faresmojo) |
Popular in | December |
Cheapest in | October |
Average price | $574 |
Good round-trip deal | $495 or less |
Good one-way deal | $354 or less |
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 12, 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
Cheapest round-trip
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Tue 9/22
1:41 pm-8:49 pm
1 stop9h 08m
San Salvador El Salvador Intl
Sat 10/3
6:00 am-5:29 pm
1 stop9h 29m
$521
Quickest round-trip
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Sun 9/13
6:55 am-12:31 pm
1 stop7h 36m
San Salvador El Salvador Intl
Sat 9/19
1:57 pm-1:17 am
1 stop9h 20m
$521
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Fri 9/18
12:37 pm-12:15 pm
2 stops25h 38m
San Salvador El Salvador Intl
Sat 9/26
1:50 pm-9:44 am
2 stops17h 54m
$525
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Fri 11/27
11:55 am-3:24 pm
2 stops28h 29m
San Salvador El Salvador Intl
Sat 12/5
1:10 am-2:23 pm
1 stop12h 13m
$525
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Sun 2/7
6:00 am-9:19 pm
3 stops16h 19m
San Salvador El Salvador Intl
Thu 3/4
4:40 pm-12:47 pm
2 stops19h 07m
$525
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Sat 9/12
7:25 am-8:49 pm
1 stop15h 24m
San Salvador El Salvador Intl
Sun 9/20
6:00 am-10:18 am
2 stops26h 18m
$525
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Sat 9/19
6:00 am-8:49 pm
3 stops16h 49m
San Salvador El Salvador Intl
Thu 9/24
6:00 am-11:24 pm
2 stops15h 24m
$525
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Fri 10/30
6:36 pm-12:19 pm
2 stops19h 43m
San Salvador El Salvador Intl
Sat 11/14
1:10 am-2:32 pm
1 stop12h 22m
$525
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Mon 11/23
6:00 am-9:19 pm
3 stops16h 19m
San Salvador El Salvador Intl
Tue 12/1
11:54 pm-12:43 pm
1 stop11h 49m
$525
BostonSan Salvador
BOS Boston Logan Intl - SAL San Salvador El Salvador Intl
BOSSAL
Boston Logan Intl
Wed 11/4
6:00 am-9:19 pm
3 stops16h 19m
San Salvador El Salvador Intl
Sat 11/14
4:40 pm-12:41 pm
2 stops19h 01m
$525
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Boston to San Salvador
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to San Salvador in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-San Salvador flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-San Salvador flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-San Salvador flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-San Salvador flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-San Salvador flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BOS-SAL
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
Prices
Delays
More
How far ahead should I book a flight from Boston to San Salvador?
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 11 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, October is the cheapest month in which you can book a flight from Boston to San Salvador (average of $375). Flying from Boston to San Salvador in December is currently the most expensive (average of $714). 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 12, 2026.
When flying from Boston to San Salvador, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Boston to San Salvador delayed?
About 18% of weekly flights between Boston and San Salvador have experienced delays in the past year, with the average delay time being 118 minutes.
What is the most punctual flight time for Boston to San Salvador flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Boston to San Salvador flights?
Over the last year, Avianca have had the lowest number of delays on this route, with just 15% of flights being delayed.
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.
Miami (MIA) – chosen by Cheapflights users on 50% 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.
Washington, D.C. (IAD) is the most affordable 1-stop option, with an average round-trip price of $386.
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 Washington, D.C. (IAD) have the shortest average one-way travel time for 1-stop routes: 7h 50m.
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 Miami (MIA) offer the fastest connection on this route, with an average layover time of 2h 08m.
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 12, 2026.
Read reviews from past customers who have flown Delta,Copa Airlines, andUnited 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.
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
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.
Traveling to a place near San Salvador?
Book flights to San Salvador if you plan to visit one of these locationsAcajutla
La Libertad
Sonsonate
El Cuco
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Boston
Popular flights
San Salvador flight routes
Alternative routes for Boston to San Salvador
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Salvador by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to San Salvador by cabin class
Find flights from Boston to San Salvador, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and San Salvador flights
Browse other Boston and San Salvador flight options. Last updated on August 12, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on August 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Salvador
Explore flights to San Salvador departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 12, 2026.
Top 7 airlines flying from Boston to San Salvador
Discover the top 7 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 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$92 | Average$412 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$145 | Average$473 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$150 | Average$521 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$156 | Average$513 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$259 | Average$547 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$313 | Average$613 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$513 | Average$624 | FlexibilityNo cancel fee | On-time74% |