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$152+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAL
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find 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 October 29, 2025.

This Copa Airlines deal was found by Cheapflights users on 10/27. 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 12/101:50 pmBOI - SAL
2 stops29h 45mCopa Airlines
Sat 1/35:03 amSAL - BOI
2 stops18h 37mCopa Airlines
Deal found 10/27$1,411
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Wed 12/106:03 amBOI - SAL
2 stops31h 45mMultiple Airlines
Sat 1/38:00 amSAL - BOI
1 stop16h 02mMultiple Airlines
Deal found 10/27$1,432
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/101:50 pmBOI - SAL
1 stop14h 55mUnited Airlines
Fri 1/23:00 amSAL - BOI
1 stop20h 30mUnited Airlines
Deal found 10/27$1,544
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/1910:41 pmBOI - SAL
2 stops39h 06mMultiple Airlines
Sat 1/38:00 amSAL - BOI
1 stop16h 02mMultiple Airlines
Deal found 10/27$1,763
This Copa Airlines deal was found by Cheapflights users on 10/27. 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 12/192:40 pmBOI - SAL
2 stops20h 59mCopa Airlines
Sat 1/35:03 amSAL - BOI
2 stops18h 37mCopa Airlines
Deal found 10/27$1,810
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sat 12/209:00 amBOI - SAL
2 stops28h 47mMultiple Airlines
Sat 1/38:00 amSAL - BOI
1 stop16h 02mMultiple Airlines
Deal found 10/27$1,861
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/207:00 amBOI - SAL
1 stop21h 45mUnited Airlines
Fri 1/23:00 amSAL - BOI
1 stop20h 30mUnited Airlines
Deal found 10/27$2,158
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/197:00 amBOI - SAL
1 stop21h 45mUnited Airlines
Fri 1/23:00 amSAL - BOI
1 stop20h 30mUnited Airlines
Deal found 10/27$2,350

Cheap 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$356
(Expedia)

One-way from

$152
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$531
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. 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 October 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 October 29, 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

Mon 3/9

7:07 am-8:19 pm

2 stops13h 12m

San Salvador El Salvador Intl

Wed 3/11

5:55 am-10:29 pm

2 stops16h 34m

$554

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Thu 1/22

10:15 am-5:45 am

1 stop18h 30m

San Salvador El Salvador Intl

Sun 2/1

4:40 pm-7:51 pm

2 stops28h 11m

$574

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Thu 1/22

1:58 pm-2:21 pm

1 stop23h 23m

San Salvador El Salvador Intl

Sun 2/1

3:21 pm-1:07 pm

1 stop22h 46m

$642

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Thu 3/12

1:44 pm-12:29 pm

1 stop22h 45m

San Salvador El Salvador Intl

Thu 3/19

2:40 pm-12:40 pm

2 stops22h 00m

$816

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Fri 12/5

12:44 pm-2:48 pm

3 stops49h 04m

$169

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Thu 12/4

12:44 pm-10:59 am

2 stops21h 15m

$187

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Fri 12/12

12:44 pm-1:38 pm

3 stops23h 54m

$223

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Mon 12/15

6:03 am-2:48 pm

3 stops31h 45m

$247

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Wed 12/3

8:26 pm-2:48 pm

2 stops17h 22m

$265

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Mon 11/17

7:00 pm-3:24 pm

2 stops19h 24m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 13 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 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 October 29, 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 October 29, 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
9,001 reviews

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 13h 12m. 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
Sonsonate
El Cuco
La Libertad
Acajutla

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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$479Average$634FlexibilityNo cancel feeOn-time69%

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