BOI - KEF

$521 Find Cheap Flights from Boise to Reykjavik-Keflavik Airport

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 12/10. 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
$699
Multiple Airlines
Mon 12/8Mon 12/15
BOI - KEF • 1 stop
Cheapest one-way
$521
Scandinavian Airlines
Wed 12/10
BOI - KEF • 2 stops
Top airlines
Alaska Airlines
Cheapest • from $954 (round-trip)
Icelandair
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Mon, Dec 8 - Mon, Dec 15
Multiple Airlines Logo
10:00 am - 6:15 amBOI-KEF
13h 15m1 stop
Multiple Airlines Logo
5:00 pm - 10:56 pmKEF-BOI
12h 56m1 stop
$699Multiple Airlines
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Mon, Dec 8 - Mon, Dec 15
Multiple Airlines Logo
7:25 am - 6:15 amBOI-KEF
15h 50m2 stops
Multiple Airlines Logo
5:00 pm - 10:56 pmKEF-BOI
12h 56m1 stop
$721Multiple Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
Multiple Airlines Logo
7:25 am - 6:15 amBOI-KEF
15h 50m2 stops
Multiple Airlines Logo
5:00 pm - 10:56 pmKEF-BOI
12h 56m1 stop
$727Multiple Airlines
Find Deal
Mon, Jan 5 - Mon, Jan 12
Alaska Airlines Logo
6:00 pm - 6:15 amBOI-KEF
29h 15m1 stop
Alaska Airlines Logo
5:00 pm - 11:59 pmKEF-BOI
13h 59m1 stop
$954Alaska Airlines
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Mon, Dec 8 - Mon, Dec 15
Alaska Airlines Logo
8:55 am - 6:15 amBOI-KEF
14h 20m1 stop
Alaska Airlines Logo
4:50 pm - 11:55 pmKEF-BOI
14h 05m1 stop
$984Alaska Airlines
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Thu, Mar 12 - Sat, Mar 21
Icelandair Logo
1:17 pm - 6:15 amBOI-KEF
10h 58m1 stop
Icelandair Logo
5:00 pm - 11:52 pmKEF-BOI
12h 52m1 stop
$1,233Icelandair
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Sun, Dec 7 - Thu, Dec 11
Scandinavian Airlines Logo
3:54 pm - 10:45 amBOI-KEF
35h 51m2 stops
Scandinavian Airlines Logo
11:30 am - 10:05 pmKEF-BOI
41h 35m2 stops
$1,260Scandinavian Airlines
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Mon, Jan 5 - Mon, Jan 12
British Airways Logo
3:45 pm - 10:50 amBOI-KEF
36h 05m2 stops
British Airways Logo
11:50 am - 6:22 pmKEF-BOI
37h 32m2 stops
$2,098British Airways
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Mon, Jan 5 - Mon, Jan 12
British Airways Logo
3:45 pm - 10:50 amBOI-KEF
36h 05m2 stops
British Airways Logo
11:50 am - 9:05 pmKEF-BOI
40h 15m2 stops
$2,102British Airways
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Mon, Dec 8 - Mon, Dec 15
Scandinavian Airlines Logo
3:54 pm - 3:25 pmBOI-KEF
40h 31m2 stops
Scandinavian Airlines Logo
7:35 am - 10:05 pmKEF-BOI
21h 30m2 stops
$2,515Scandinavian Airlines
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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.

How much is a round-trip flight from Boise to Reykjavik Keflavik Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boise to Reykjavik Keflavik Intl Airport departing in December.
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Good to know

Low seasonNovember
Cheapest flight$521
Best time to beat the crowds with an average 63% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Boise to Reykjavik-Keflavik Airport

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-Keflavik Airport flights

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

    In the last 3 days, the lowest price for a flight from Boise to Reykjavik Keflavik Intl Airport was $521 for a one-way ticket and $699 for a round-trip.

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

    Yes

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

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

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

    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-Keflavik Airport.

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

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

    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-Keflavik Airport 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-Keflavik Airport?

    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-Keflavik Airport 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.
7.0
IcelandairOverall score based on 574 reviews
6.2Food
7.2Boarding
7.0Entertainment
6.9Comfort
8.0Crew
Airline reviews

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

8.0 ExcellentJef, Nov 2025LHR - KEF
Read more Icelandair reviews

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

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

Information on your arrival and departure airports

Boise (BOI)
Keflavik Intl (KEF)