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Keflavik Intl

$690+ Cheap flights from Boise (BOI) to Keflavik Intl (KEF)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — KEF
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Boise to Keflavik Intl

Cheapest flights from Boise to Keflavik Intl
Explore the most affordable flight options available from Boise to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:26 pmBOI - KEF
1 stop26h 49mAlaska Airlines
Mon 12/84:50 pmKEF - BOI
1 stop23h 30mAlaska Airlines
Deal found 12/2$962
This Kiwi.com deal was found by Cheapflights users on 12/3. 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 12/319:50 pmBOI - KEF
1 stop25h 25mMultiple Airlines
Wed 1/75:00 pmKEF - BOI
2 stops37h 58mMultiple Airlines
Deal found 12/3$1,539
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:43 amBOI - KEF
1 stop17h 32mAlaska Airlines
Mon 12/295:00 pmKEF - BOI
2 stops23h 15mAlaska Airlines
Deal found 12/2$1,650
This Trip.com deal was found by Cheapflights users on 12/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:43 amBOI - KEF
1 stop17h 32mMultiple Airlines
Mon 12/295:00 pmKEF - BOI
1 stop13h 37mMultiple Airlines
Deal found 12/2$1,800
This Scandinavian Airlines deal was found by Cheapflights users on 12/2. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/63:54 pmBOI - KEF
3 stops25h 01mScandinavian Airlines
Mon 12/87:50 amKEF - BOI
2 stops21h 15mScandinavian Airlines
Deal found 12/2$2,212
This Priceline deal was found by Cheapflights users on 12/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/610:00 amBOI - KEF
2 stops24h 05mBritish Airways
Mon 12/811:50 amKEF - BOI
2 stops40h 55mBritish Airways
Deal found 12/2$2,588

Find flight deals from Boise to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Keflavik Intl (KEF). 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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$758
(Expedia)

One-way from

$690
(Icelandair)

Popular in

March

Cheapest in

November

Average price

$1,273
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Reykjavik Keflavik Intl flights.
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From Boise Air Term. Gowen Fld to Reykjavik Keflavik Intl
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One-way flight from Boise Air Term. Gowen Fld to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 18% potential increase in price ($242 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Keflavik Intl 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 December 4, 2025.
Use the filters below to find and compare flights from Boise to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Boise

Fly to

Keflavik Intl

Route

Depart

Return

Price

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Fri 1/16

3:43 pm-2:20 pm

2 stops39h 37m

Reykjavik Keflavik Intl

Fri 1/23

3:25 pm-11:01 pm

2 stops38h 36m

$758

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Sun 4/5

5:30 am-9:30 am

2 stops22h 00m

Reykjavik Keflavik Intl

Sun 4/12

11:25 am-4:48 pm

2 stops35h 23m

$773

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Sat 4/4

6:00 am-6:15 am

1 stop18h 15m

Reykjavik Keflavik Intl

Sat 4/11

4:50 pm-10:21 pm

1 stop11h 31m

$916

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Sun 4/5

6:00 am-6:15 am

1 stop18h 15m

Reykjavik Keflavik Intl

Sun 4/12

7:50 pm-1:47 pm

1 stop23h 57m

$924

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Sun 5/17

7:31 am-7:50 am

2 stops42h 19m

Reykjavik Keflavik Intl

Sun 5/31

8:35 am-11:05 pm

2 stops44h 30m

$956

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Sun 5/17

11:05 am-6:00 am

1 stop12h 55m

Reykjavik Keflavik Intl

Sun 5/31

10:30 am-4:30 pm

1 stop12h 00m

$958

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Mon 1/5

9:50 pm-6:15 am

1 stop25h 25m

Reykjavik Keflavik Intl

Mon 1/12

5:00 pm-12:54 pm

2 stops26h 54m

$994

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Sat 4/4

2:40 pm-11:30 pm

2 stops26h 50m

Reykjavik Keflavik Intl

Sat 4/11

2:20 pm-6:00 pm

2 stops33h 40m

$1,030

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Wed 12/10

5:15 am-6:05 am

1 stop17h 50m

$690

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Wed 12/10

8:26 pm-6:15 am

2 stops26h 49m

$870

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Compare providers for flights from Boise to Keflavik Intl

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 Keflavik Intl in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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-Reykjavik Keflavik Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boise-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Reykjavik Keflavik Intl Airport 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-Reykjavik Keflavik Intl Airport 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 Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl 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 Reykjavik Keflavik Intl Airport

What is the cheapest time of day to fly from BOI to KEF?

Find hourly flight availability from Boise to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 13% on flights from Boise to Reykjavik Keflavik Intl Airport by exploring options for tickets in the morning.

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. 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 Keflavik Intl. Reviews last updated December 4, 2025.
Read through reviews of airlines operating flights from Boise to Reykjavik Keflavik Intl Airport, such as Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
584 reviews

Food

6.2

Comfort

6.9

Entertainment

7.0

Overall

7.0

Boarding

7.1

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.
Icelandair
7.0
Good
584 reviews
Icelandair
7.0
Good
584 reviews

Food

6.2

Comfort

6.9

Entertainment

7.0

Overall

7.0

Boarding

7.1

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.

Related info for your journey

Find useful and relevant information for your journey from Boise to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boise to Reykjavik Keflavik Intl?

    For a flight from Boise to Reykjavik Keflavik Intl, you will be flying from Air Term. Gowen Fld. Boise Air Term. Gowen Fld (BOI) is just 3.3 mi from the center of the city. Air Term. Gowen Fld is the only Boise airport and it handles 0 outbound flights to Reykjavik Keflavik Intl per day. 1 airline has flights to Reykjavik Keflavik Intl from Boise Air Term. Gowen Fld on a regular basis.

  • How long is the flight from Boise to Reykjavik Keflavik Intl Airport?

    A quick flight from Boise to Reykjavik Keflavik Intl Airport can take about 18h 15m. Alaska Airlines provides one of the quickest options available for as low as $916. Boise and Reykjavik Keflavik Intl Airport are separated by a distance of 3672 mi.

  • What is the cheapest airline to fly from Boise to Reykjavik Keflavik Intl Airport round-trip?

    Our cheapest airline available from Boise to Reykjavik Keflavik Intl Airport is Icelandair. Our recent data shows that you can find tickets from as low as $386 on this airline. Icelandair is 62% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Boise to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Boise to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Keflavik Intl.

  • Can I find deals for business class flights from Boise to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Boise to Keflavik Intl 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 Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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Alternative routes for Boise to Keflavik Intl

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Top airline flying from Boise to Keflavik Intl

Discover the top airline that operate flights from Boise to Keflavik Intl. 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$386Average$1,116FlexibilityNo cancel feeOn-time76%

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