BOI - KEF

$260 Find Cheap Flights from Boise to Reykjavik

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 Keflavik Intl departing on 7/12. 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 Reykjavik Keflavik Intl Airport

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

Cheapest round-trip
$804
Alaska Airlines
Wed 8/12Mon 8/24
BOI - KEF • 1 stop
Cheapest one-way
$260
Alaska Airlines
Sun 7/12
BOI - KEF • 1 stop
Top airlines
Cheapest • from $804 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boise and Keflavik Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $965 (round-trip)
Shortest trip • 9h 54m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Keflavik Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Keflavik Intl (BOI-KEF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Keflavik Intl 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 Keflavik Intl

Wed, Aug 12 - Mon, Aug 24
Alaska Airlines Logo
6:23 am - 9:00 am
BOI
-
KEF
20h 37m
1 stop
Alaska Airlines Logo
12:45 pm - 11:44 pm
KEF
-
BOI
16h 59m
1 stop
$804Alaska Airlines
Tue, Jul 14 - Thu, Jul 23
Multiple Airlines Logo
4:27 pm - 2:00 pm
BOI
-
KEF
15h 33m
1 stop
Multiple Airlines Logo
10:40 am - 12:04 am
KEF
-
BOI
19h 24m
1 stop
$931Multiple Airlines
Tue, Jul 14 - Thu, Jul 23
United Airlines Logo
8:25 am - 8:50 am
BOI
-
KEF
18h 25m
1 stop
United Airlines Logo
9:15 am - 5:56 pm
KEF
-
BOI
38h 41m
2 stops
$974United Airlines
Tue, Jul 14 - Thu, Jul 23
Air Canada Logo
7:05 pm - 7:55 am
BOI
-
KEF
30h 50m
2 stops
Air Canada Logo
9:15 am - 9:29 pm
KEF
-
BOI
42h 14m
2 stops
$977Air Canada
Sun, Jul 12 - Thu, Jul 16
Alaska Airlines Logo
6:23 am - 9:00 am
BOI
-
KEF
20h 37m
1 stop
Alaska Airlines Logo
12:45 pm - 6:11 pm
KEF
-
BOI
11h 26m
1 stop
$979Alaska Airlines
Sat, Jul 25 - Wed, Jul 29
Alaska Airlines Logo
6:10 pm - 9:00 am
BOI
-
KEF
32h 50m
1 stop
Alaska Airlines Logo
12:45 pm - 10:55 pm
KEF
-
BOI
16h 10m
1 stop
$989Alaska Airlines
Sat, Jul 25 - Wed, Jul 29
Icelandair Logo
8:47 pm - 2:00 pm
BOI
-
KEF
11h 13m
1 stop
Icelandair Logo
10:40 am - 6:11 pm
KEF
-
BOI
13h 31m
1 stop
$1,044Icelandair
Wed, Aug 12 - Mon, Aug 24
Air Canada Logo
5:00 am - 7:55 am
BOI
-
KEF
20h 55m
2 stops
Air Canada Logo
9:15 am - 10:40 pm
KEF
-
BOI
43h 25m
2 stops
$1,047Air Canada
Sat, Jul 11 - Mon, Jul 20
Icelandair Logo
8:47 pm - 2:00 pm
BOI
-
KEF
11h 13m
1 stop
Icelandair Logo
10:40 am - 10:24 pm
KEF
-
BOI
17h 44m
1 stop
$1,048Icelandair
Sat, Aug 8 - Tue, Aug 18
Icelandair Logo
8:47 pm - 6:15 am
BOI
-
KEF
27h 28m
1 stop
Icelandair Logo
10:40 am - 10:24 pm
KEF
-
BOI
17h 44m
1 stop
$1,105Icelandair
Booking Insights

KAYAK's insights & trends for Boise to Keflavik Intl flights

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

Which airlines provide the cheapest flights from Boise to Reykjavik?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Boise to Reykjavik were found on Alaska Airlines ($804) and United Airlines ($974).

Good to know

Cheapest flight$260
Flight from Boise to Reykjavik

When to book flights from Boise to Keflavik Intl

Are your dates flexible? Find out the best times to travel from Boise to Keflavik Intl 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 Boise to Reykjavik flights

  • What is the cheapest flight from Boise to Reykjavik Keflavik Intl Airport?

    In the last 5 days, the lowest price for a flight from Boise to Reykjavik Keflavik Intl Airport was $260 for a one-way ticket and $804 for a round-trip.

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

    Yes

  • Which aircraft models fly most regularly from Boise to Reykjavik?

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

  • Which airline alliances offer flights from Boise to Reykjavik?

    oneworld is the only airline alliance operating flights between Boise and Reykjavik.

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

    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 Reykjavik.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik 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 Reykjavik?

    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 Reykjavik with an airline and back to Boise with another airline. Booking your flights between Boise and KEF 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 Reykjavik?

    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 Reykjavik 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 Keflavik Intl

 
See real verified KAYAK customer reviews for airlines flying from Boise to Reykjavik. 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 Keflavik Intl? 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.
7.9
Alaska AirlinesOverall score based on 12534 reviews
7.0Entertainment
7.0Food
8.5Crew
8.1Boarding
7.8Comfort
Airline reviews

there was no entertainment available and only water/coffee/juice/soda

8.0 ExcellentAnonymous, Jun 2026
PHX - SEA
Read more Alaska Airlines reviews

there was no entertainment available and only water/coffee/juice/soda

Subject: Formal Complaint – Incompetent Service and Denied Boarding on Flight 1409 (CLSVJM – Dear Alaska Airlines Customer Relations, I am writing to file a formal complaint regarding my experience on Flight 1409 departing from Seattle on 6/13/26. As a physician and business owner who frequently coordinates group travel, this was one of the worst airline experiences I have encountered. Upon arrival, I was informed that my check-in boarding pass was not official, despite successfully obtaining it electronically through your website/app with no warnings or indications of issues. My electronic boarding pass was rejected, leading to cancellation/denial of boarding. The gate agent (an older woman) was unhelpful, claimed my name had been announced multiple times (which it had not—she did not even know my name correctly), and mistakenly boarded my traveling companion under my name. Additionally, an older blonde staff member nearly failed to return my passport, highlighting a clear lack of training on your check-in and boarding systems. This chaos forced me onto a later flight while my group waited in Canada, unable to check into our Airbnb or pick up rental cars (as I was the primary booker). The entire incident caused significant business disruption, stress, and additional expenses. I have flown Alaska Airlines previously but will not consider it again without resolution. I request: • Full reimbursement of any additional costs incurred. • Appropriate compensation (vouchers/miles) for the inconvenience and poor service. • Confirmation of corrective actions for Please respond within 7-10 business days. Sincerely, Dr. Chunwen Teng

On time, good seats, not overly full, up beast positive crew.

Airport security lines in Seattle were awful. The only staff that was pleasant and made the trip more enjoyable was the young woman at the gate in Seattle. She was so pleasant and helpful. Flight attendant on the plane seemed like she would rather be anywhere but on that plane.

Never had so many staff members be rude and disrespectful. I had a staff member sarcastically call me “girly” after making me wait 20 minutes to be seen by her. I was able to print my luggage tag and she told me I was too late to check luggage I said the system obviously disagrees. And you had me wait way too long while you asked every single passenger ahead of me about their Disney vacations. She wasted so much time to then say “girly your bag won’t make it on the plane” I’m not her girly I’m a full grown adult. She needs to learn a hell of a lot of respect

My flight was several times rescheduled and then finally canceled.

The agents were super helpful. I was traveling with my mother inlaw who needed whell chair assisstance. The help and accomodation from the checkin crew, to the boarding crew and inflight crew was excellent.

People were friendly. Flight was a little delayed. Maybe I missed the reason for it. Overall a nice experience.

Completely full flight. Boarding was smooth, but people didn’t listen about use of overhead bins which is typical. We pre-purchased a snack which was tasty. Drinks were good and plentiful. Flight left late because previous flight was delayed.

The flight itself was great. But we had to wait over an hour to deplane so I missed my train. Not the crews fault. They were wonderful!

Everything you need to know for your flight from Boise to Keflavik Intl

Information on your arrival and departure airports