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San Salvador

$155+ Cheap flights from Boise (BOI) 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAL
févr. 20 — févr. 271
ven. 2/20
ven. 2/27
1 adult, Economy
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Cheap flight deals from Boise to San Salvador

Cheapest flights from Boise to San Salvador
Explore the most affordable flight options available from Boise to San Salvador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 21, 2026.

This American Airlines deal was found by Cheapflights users on 1/19. 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.
dim. 5/36:26 pm
BOI
-
SAL
2 stops18h 17m
American Airlines
sam. 5/91:19 pm
SAL
-
BOI
2 stops21h 31m
American Airlines
Deal found 1/19$245
This American Airlines deal was found by Cheapflights users on 1/20. 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.
ven. 8/216:59 am
BOI
-
SAL
2 stops12h 48m
American Airlines
mar. 9/112:40 pm
SAL
-
BOI
2 stops24h 06m
American Airlines
Deal found 1/20$305
This American Airlines deal was found by Cheapflights users on 1/20. 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.
ven. 8/216:59 am
BOI
-
SAL
2 stops28h 41m
American Airlines
mer. 9/26:00 am
SAL
-
BOI
2 stops30h 46m
American Airlines
Deal found 1/20$320
This Trip.com deal was found by Cheapflights users on 1/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 8/236:51 pm
BOI
-
SAL
1 stop11h 24m
Multiple Airlines
jeu. 9/36:15 pm
SAL
-
BOI
1 stop28h 40m
Multiple Airlines
Deal found 1/20$368
This Avianca deal was found by Cheapflights users on 1/21. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 5/37:14 pm
BOI
-
SAL
1 stop11h 01m
Multiple Airlines
sam. 5/98:00 am
SAL
-
BOI
1 stop15h 01m
Multiple Airlines
Deal found 1/21$399
This United Airlines deal was found by Cheapflights users on 1/20. 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.
lun. 8/242:11 pm
BOI
-
SAL
1 stop14h 39m
United Airlines
lun. 8/312:00 am
SAL
-
BOI
1 stop11h 30m
United Airlines
Deal found 1/20$403
This United Airlines deal was found by Cheapflights users on 1/20. 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.
mar. 8/2511:45 am
BOI
-
SAL
2 stops17h 05m
United Airlines
sam. 9/56:00 am
SAL
-
BOI
2 stops11h 55m
United Airlines
Deal found 1/20$407
This American Airlines deal was found by Cheapflights users on 1/20. 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.
lun. 1/261:58 pm
BOI
-
SAL
2 stops21h 33m
American Airlines
mer. 2/251:37 pm
SAL
-
BOI
2 stops23h 33m
American Airlines
Deal found 1/20$430

Find flight deals from Boise to San Salvador

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) 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 janvier 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$245
(American Airlines)

One-way from

$155
(Kiwi.com)

Popular in

December

Cheapest in

March
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San Salvador El Salvador Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San Salvador El Salvador Intl flights.
Search Deals
From Boise Air Term. Gowen Fld to San Salvador El Salvador Intl
Search Deals
One-way flight from Boise Air Term. Gowen Fld to San Salvador El Salvador Intl
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($177 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($38 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise 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 janvier 21, 2026.
Use the filters below to find and compare flights from Boise to San Salvador that are best for you.

Fly from

Boise

Fly to

San Salvador

Route

Depart

Return

Price

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

lun. 1/26

1:58 pm-12:31 pm

2 stops21h 33m

San Salvador El Salvador Intl

mer. 2/25

1:37 pm-12:10 pm

2 stops23h 33m

$430

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

sam. 4/4

8:07 am-7:50 pm

1 stop11h 43m

San Salvador El Salvador Intl

sam. 4/11

8:00 am-11:02 pm

1 stop15h 02m

$509

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

sam. 4/4

7:20 pm-1:44 pm

2 stops18h 24m

San Salvador El Salvador Intl

sam. 4/11

1:19 pm-1:03 pm

2 stops23h 44m

$557

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

lun. 1/26

10:15 am-5:45 am

1 stop18h 30m

San Salvador El Salvador Intl

mer. 1/28

6:55 am-7:45 pm

2 stops13h 50m

$569

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

dim. 3/1

11:56 am-2:56 pm

3 stops50h 00m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Compare providers for flights from Boise 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 Boise to San Salvador in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-San Salvador flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-San Salvador flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-San Salvador flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-San Salvador flights, Cheapflights users trust Expedia the most. Expedia 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 Boise-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 Boise to San Salvador

Have a flexible travel schedule? Discover the best time to fly to San Salvador from Boise 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.

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 janvier 21, 2026.
Read through reviews of airlines operating flights from Boise to San Salvador, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,191 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,191 reviews
United Airlines
7.4
Good
9,191 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Boise 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 long is the flight from Boise to San Salvador?

    Departing from Boise to San Salvador will take you 18h 30m. The distance from Boise to San Salvador is about 2629 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Boise to San Salvador round-trip?

    Currently priced at $234, United Airlines will fly you from Boise to San Salvador and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. You may be able to fly from Boise to San Salvador for 62% less than the average price by searching for this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise 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.

See more FAQs

Traveling to a place near San Salvador?

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

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Complete your trip to San Salvador by adding a car rental and/or hotel reservation to your travel itinerary.
San Salvador car rentals
San Salvador El Salvador Intl Airport car rentals

Top airline flying from Boise to San Salvador

Discover the top airline that operate flights from Boise 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 janvier 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$234Average$572FlexibilityNo cancel feeOn-time69%

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