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$460+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$460
(United Airlines)

Popular in

December

Cheapest in

September
From Boise Air Term. Gowen Fld to San Salvador El Salvador Intl
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($197 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($60 potential savings vs. average RT price).
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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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/9. 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.
Mon 8/184:40 pmBOI - SAL
1 stop12h 10mUnited Airlines
Mon 8/252:00 amSAL - BOI
1 stop11h 30mUnited Airlines
Deal found 6/9$460
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Fri 8/87:48 pmBOI - SAL
1 stop25h 17mMultiple Airlines
Mon 8/1810:05 amSAL - BOI
2 stops28h 59mMultiple Airlines
Deal found 6/9$478
This American Airlines deal was found by Cheapflights users on 6/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/85:17 pmBOI - SAL
2 stops19h 38mAmerican Airlines
Mon 7/142:05 pmSAL - BOI
1 stop20h 49mAmerican Airlines
Deal found 6/9$631
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/911:40 pmBOI - SAL
1 stop12h 24mDelta
Mon 7/141:19 pmSAL - BOI
2 stops20h 07mDelta
Deal found 6/9$689
This Copa Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 12/192:11 pmBOI - SAL
2 stops21h 40mCopa Airlines
Mon 12/298:30 amSAL - BOI
2 stops15h 35mCopa Airlines
Deal found 6/9$1,498

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 June 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

Mon 8/18

4:40 pm-4:50 am

1 stop12h 10m

San Salvador El Salvador Intl

Mon 8/25

2:00 am-1:30 pm

1 stop11h 30m

$460

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Fri 8/8

7:48 pm-9:05 pm

1 stop25h 17m

San Salvador El Salvador Intl

Mon 8/18

10:05 am-3:04 pm

2 stops28h 59m

$478

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Tue 7/8

5:17 pm-12:55 pm

2 stops19h 38m

San Salvador El Salvador Intl

Mon 7/14

2:05 pm-10:54 am

1 stop20h 49m

$631

BoiseSan Salvador

BOI - SAL

BOISAL

Boise Air Term. Gowen Fld

Wed 7/9

11:40 pm-12:04 pm

1 stop12h 24m

San Salvador El Salvador Intl

Mon 7/14

1:19 pm-9:26 am

2 stops20h 07m

$689

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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 June 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 32% on your trip compared to booking a flight in the afternoon.

Rainfall in San Salvador by month

Plan your trip to San Salvador by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Salvador ranges from 0.0 - 13.0 inches per month. August is typically the wettest month, when rainfall can reach 13.0 in. February is typically the driest time to visit San Salvador when rainfall is around 0.0 in.

Temperature in San Salvador by month

Plan your trip to San Salvador by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Salvador, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

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 June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

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
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

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
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

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 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.

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

    Currently priced at $460, 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. Search Cheapflights for deals from American Airlines and Delta - these airlines can fly you to your destination from $631 and $689, respectively. You may be able to fly from Boise to San Salvador for 29% less than the average price by searching for these airlines.

  • 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.

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

    Currently, September is the cheapest month in which you can book a flight from Boise to San Salvador (average of $260). Flying from Boise 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 Boise?

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

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.

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$452Average$572FlexibilityNo cancel feeOn-time69%

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