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San Salvador

$224+ Cheap flights from Boise (BOI) to San Salvador (SAL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/255:00 amBOI - SAL
2 stops15h 19mUnited Airlines
Mon 12/292:00 amSAL - BOI
2 stops17h 03mUnited Airlines
Deal found 12/10$651
This American Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/251:27 pmBOI - SAL
1 stop23h 04mAmerican Airlines
Tue 12/302:31 pmSAL - BOI
1 stop23h 06mAmerican Airlines
Deal found 12/10$1,055

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$224
(American Airlines)

Popular in

December

Cheapest in

May

Average price

$1,055
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
Highest demand for flights based on searches. 15% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 2025.
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

Wed 1/21

1:58 pm-12:31 pm

2 stops21h 33m

San Salvador El Salvador Intl

Wed 1/28

1:31 pm-1:08 pm

2 stops24h 37m

$224

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Wed 1/21

7:05 am-9:05 pm

1 stop13h 00m

San Salvador El Salvador Intl

Wed 1/28

9:10 am-1:35 pm

1 stop29h 25m

$385

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Thu 1/15

2:48 pm-12:31 pm

2 stops20h 43m

San Salvador El Salvador Intl

Tue 2/3

1:31 pm-12:07 pm

2 stops23h 36m

$519

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Wed 1/21

10:15 am-5:45 am

1 stop18h 30m

San Salvador El Salvador Intl

Tue 1/27

3:00 am-7:51 pm

1 stop17h 51m

$544

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Thu 1/15

10:15 am-5:45 am

1 stop18h 30m

San Salvador El Salvador Intl

Mon 2/2

3:00 am-7:51 pm

1 stop17h 51m

$544

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Thu 12/25

5:00 am-9:19 pm

2 stops15h 19m

San Salvador El Salvador Intl

Mon 12/29

2:00 am-6:03 pm

2 stops17h 03m

$651

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Mon 12/15

7:11 pm-3:24 pm

2 stops19h 13m

$439

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Mon 12/15

1:17 pm-1:25 pm

1 stop23h 08m

$508

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Mon 12/15

5:45 am-12:23 pm

3 stops29h 38m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-San Salvador flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

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

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

Find hourly flight availability from Boise 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 December 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Boise to San Salvador in the evening. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the afternoon.

How much does it cost to fly round-trip from Boise to San Salvador?

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 December 12, 2025.
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
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 21h 33m. The distance from Boise to San Salvador is about 2629 mi.

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

    Currently priced at $479, 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 28% 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$479Average$634FlexibilityNo cancel feeOn-time69%

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