BOI - SAL

$255 Find Cheap Flights from Boise to San Salvador

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to San Salvador departing on 3/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Salvador

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to San Salvador, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to San Salvador, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$547
Multiple Airlines
Thu 12/11Thu 12/18
BOI - SAL • 2 stops
Cheapest one-way
$255
Multiple Airlines
Sat 3/28
BOI - SAL • 2 stops
Top airlines
United Airlines
Cheapest • from $554 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
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+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to San Salvador!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to San Salvador (BOI-SAL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to San Salvador that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to San Salvador

Thu, Dec 11 - Thu, Dec 18
Multiple Airlines Logo
12:44 pm - 12:23 pmBOI-SAL
22h 39m2 stops
Multiple Airlines Logo
9:00 am - 3:44 pmSAL-BOI
31h 44m1 stop
$547Multiple Airlines
Find Deal
Mon, Mar 9 - Thu, Mar 12
United Airlines Logo
1:00 pm - 4:45 amBOI-SAL
15h 45m2 stops
United Airlines Logo
5:55 am - 9:08 pmSAL-BOI
15h 13m2 stops
$554United Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 26
Multiple Airlines Logo
7:05 am - 6:15 amBOI-SAL
22h 10m1 stop
Multiple Airlines Logo
6:15 pm - 11:02 pmSAL-BOI
29h 47m1 stop
$571Multiple Airlines
Find Deal
Sun, May 3 - Fri, May 8
United Airlines Logo
5:22 pm - 8:17 pmBOI-SAL
26h 55m2 stops
United Airlines Logo
2:00 am - 5:55 pmSAL-BOI
15h 55m2 stops
$574United Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 26
Multiple Airlines Logo
7:45 am - 2:52 pmBOI-SAL
30h 07m2 stops
Multiple Airlines Logo
6:15 pm - 1:35 pmSAL-BOI
20h 20m1 stop
$583Multiple Airlines
Find Deal
Mon, Jan 12 - Sun, Jan 25
United Airlines Logo
2:37 pm - 5:45 amBOI-SAL
14h 08m2 stops
United Airlines Logo
3:00 am - 7:51 pmSAL-BOI
17h 51m1 stop
$590United Airlines
Find Deal
Thu, Dec 11 - Sat, Dec 20
Multiple Airlines Logo
8:55 am - 12:23 pmBOI-SAL
26h 28m2 stops
Multiple Airlines Logo
5:35 pm - 1:28 pmSAL-BOI
20h 53m1 stop
$592Multiple Airlines
Find Deal
Mon, Mar 9 - Wed, Mar 11
United Airlines Logo
7:07 am - 8:19 pmBOI-SAL
13h 12m2 stops
United Airlines Logo
1:30 am - 1:39 pmSAL-BOI
12h 09m2 stops
$594United Airlines
Find Deal
Sun, May 3 - Fri, May 8
United Airlines Logo
8:05 am - 4:50 amBOI-SAL
20h 45m1 stop
United Airlines Logo
2:00 am - 1:30 pmSAL-BOI
11h 30m1 stop
$599United Airlines
Find Deal
Sun, May 3 - Sat, May 9
United Airlines Logo
8:05 am - 4:50 amBOI-SAL
20h 45m1 stop
United Airlines Logo
6:00 am - 9:16 pmSAL-BOI
15h 16m2 stops
$603United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Boise to San Salvador flights

Get data-powered insights and trends into flights from Boise to San Salvador to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boise to San Salvador?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boise to San Salvador were found on United Airlines ($554) and American Airlines ($608).

Which airlines fly non-stop between Boise and San Salvador?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Boise to San Salvador.

There is just one airline that flies from Boise to San Salvador direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is $479.

Good to know

Low seasonMay
Cheapest flight$255
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Boise to San Salvador

When to book flights from Boise to San Salvador

Are your dates flexible? Find out the best times to travel from Boise to San Salvador based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boise to San Salvador

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

    In the last 3 days, the lowest price for a flight from Boise to San Salvador was $255 for a one-way ticket and $547 for a round-trip.

  • Do I need a passport to fly between Boise and San Salvador?

    A passport is required to fly from Boise to San Salvador.

  • Which airports will I be using when flying from Boise to San Salvador?

    When flying out of Boise you will be using Boise Air Term. Gowen Fld. You will be landing at San Salvador, also known as San Salvador El Salvador Intl.

  • Which aircraft models fly most regularly from Boise to San Salvador?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to San Salvador?

    Star Alliance is the only airline alliance operating flights between Boise and San Salvador.

  • How does KAYAK find such low prices on flights from Boise to San Salvador?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to San Salvador.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to San Salvador?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Salvador from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to San Salvador?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Salvador with an airline and back to Boise with another airline. Booking your flights between Boise and SAL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to San Salvador?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Salvador from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boise to San Salvador

 
See real verified KAYAK customer reviews for airlines flying from Boise to San Salvador. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to San Salvador? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9015 reviews
7.1Entertainment
8.1Crew
7.3Comfort
7.7Boarding
6.6Food
Airline reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

10.0 ExcellentDavid, Nov 2025IAD - BTV
Read more United Airlines reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

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

Information on your arrival and departure airports