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Keflavik Intl

$341+ Cheap flights from Idaho 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — KEF
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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Cheap flight deals from Idaho to Keflavik Intl

Keep the following information in mind while searching for Idaho to Keflavik Intl flight deals. Data was last updated April 4, 2025.

Round-trip from

$780
(Kiwi.com)

One-way from

$341
(Kiwi.com)
From Idaho to Reykjavik Keflavik Intl
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One-way flight from Idaho to Reykjavik Keflavik Intl
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Find flight deals from Idaho to Keflavik Intl

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

This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Fri 5/24:20 pmBOI - KEF
1 stop11h 05mMultiple Airlines
Fri 5/94:50 pmKEF - BOI
1 stop11h 49mMultiple Airlines
Deal found 4/3$780
This United Airlines deal was found by Cheapflights users on 4/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/162:45 pmJAC - KEF
2 stops35h 30mUnited Airlines
Fri 8/299:30 amKEF - JAC
2 stops37h 59mUnited Airlines
Deal found 4/3$791
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Sun 5/181:40 pmGEG - KEF
1 stop12h 45mMultiple Airlines
Sun 5/257:45 pmKEF - GEG
1 stop11h 09mMultiple Airlines
Deal found 4/3$802
This United Airlines deal was found by Cheapflights users on 4/4. 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.
Sat 9/64:11 pmGEG - KEF
2 stops33h 19mUnited Airlines
Wed 9/1712:00 pmKEF - GEG
2 stops15h 29mUnited Airlines
Deal found 4/4$812
This Delta deal was found by Cheapflights users on 4/4. 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.
Tue 5/67:15 amBOI - KEF
2 stops20h 15mDelta
Sat 5/1711:25 amKEF - BOI
2 stops28h 41mDelta
Deal found 4/4$872
This United Airlines deal was found by Cheapflights users on 4/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/510:00 amBOI - KEF
2 stops16h 30mUnited Airlines
Sat 9/1311:00 amKEF - BOI
2 stops16h 16mUnited Airlines
Deal found 4/3$932
This United deal was found by Cheapflights users on 4/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:50 amJAC - KEF
3 stops40h 45mMultiple Airlines
Wed 9/2410:00 amKEF - JAC
2 stops14h 18mMultiple Airlines
Deal found 4/4$956
This Air Canada deal was found by Cheapflights users on 4/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/510:39 amBOI - KEF
3 stops15h 56mAir Canada
Sat 9/1310:00 amKEF - BOI
3 stops18h 30mAir Canada
Deal found 4/3$983
This Delta deal was found by Cheapflights users on 4/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/136:50 amGEG - KEF
1 stop17h 10mDelta
Tue 8/128:50 amKEF - GEG
2 stops20h 52mDelta
Deal found 4/3$985
This FlightHub deal was found by Cheapflights users on 4/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/68:48 pmGEG - KEF
1 stop10h 12mIcelandair
Wed 9/174:50 pmKEF - GEG
1 stop13h 21mIcelandair
Deal found 4/3$1,002
This FlightHub deal was found by Cheapflights users on 4/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/61:00 pmBOI - KEF
1 stop11h 15mIcelandair
Sat 5/174:50 pmKEF - BOI
1 stop12h 54mIcelandair
Deal found 4/3$1,011
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/311:40 pmGEG - KEF
1 stop17h 20mAlaska Airlines
Wed 9/310:30 amKEF - GEG
1 stop15h 19mAlaska Airlines
Deal found 4/3$1,041

Cheapflights Fare Finder

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

Fly from

Idaho

Fly to

Keflavik Intl

Route

Depart

Return

Price

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Fri 5/2

4:20 pm-9:25 am

1 stop11h 05m

Reykjavik Keflavik Intl

Fri 5/9

4:50 pm-10:39 pm

1 stop11h 49m

$780

JacksonReykjavik

JAC - KEF

JACKEF

Jackson Hole

Sat 8/16

2:45 pm-8:15 am

2 stops35h 30m

Reykjavik Keflavik Intl

Fri 8/29

9:30 am-5:29 pm

2 stops37h 59m

$791

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

Sun 5/18

1:40 pm-9:25 am

1 stop12h 45m

Reykjavik Keflavik Intl

Sun 5/25

7:45 pm-11:54 pm

1 stop11h 09m

$802

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

Sat 9/6

4:11 pm-8:30 am

2 stops33h 19m

Reykjavik Keflavik Intl

Wed 9/17

12:00 pm-8:29 pm

2 stops15h 29m

$812

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Tue 5/6

7:15 am-9:30 am

2 stops20h 15m

Reykjavik Keflavik Intl

Sat 5/17

11:25 am-10:06 am

2 stops28h 41m

$872

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Fri 9/5

10:00 am-8:30 am

2 stops16h 30m

Reykjavik Keflavik Intl

Sat 9/13

11:00 am-9:16 pm

2 stops16h 16m

$932

JacksonReykjavik

JAC - KEF

JACKEF

Jackson Hole

Wed 9/17

9:50 am-8:35 am

3 stops40h 45m

Reykjavik Keflavik Intl

Wed 9/24

10:00 am-6:18 pm

2 stops14h 18m

$956

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Fri 9/5

10:39 am-8:35 am

3 stops15h 56m

Reykjavik Keflavik Intl

Sat 9/13

10:00 am-10:30 pm

3 stops18h 30m

$983

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

Sun 7/13

6:50 am-7:00 am

1 stop17h 10m

Reykjavik Keflavik Intl

Tue 8/12

8:50 am-10:42 pm

2 stops20h 52m

$985

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

Sat 9/6

8:48 pm-2:00 pm

1 stop10h 12m

Reykjavik Keflavik Intl

Wed 9/17

4:50 pm-11:11 pm

1 stop13h 21m

$1,002

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 34 results
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Best time to book a flight from Idaho to Keflavik Intl

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

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

Find hourly flight availability from Idaho 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 April 4, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Reykjavik Keflavik Intl Airport as you normally would.

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 April 4, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and KLM from Idaho to Reykjavik to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,837 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,837 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
KLM
7.8
Good
1,322 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Finnair
7.6
Good
1,267 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Air France
7.4
Good
1,427 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Idaho 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 are the cheapest airlines to fly from Idaho to Reykjavik Keflavik Intl Airport one-way?

    One-way options have recently been found by users for as low as $577 on Air Canada. Other airlines that offer cheap prices include United Airlines from $599 and Air France from $599 one-way.

  • What are the most popular routes from Idaho to Reykjavik Keflavik Intl Airport?

    Most travelers choose Boise Air Term. Gowen Fld - Reykjavik Keflavik Intl, Spokane - Reykjavik Keflavik Intl or Jackson Hole - Reykjavik Keflavik Intl when deciding on the best route from Idaho to Reykjavik Keflavik Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho 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.

  • What is the cheapest month to book a flight from Idaho to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Idaho to Reykjavik Keflavik Intl Airport (average of $328). Flying from Idaho to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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

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Alternative routes for Idaho to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Idaho to Keflavik Intl

Discover the top airline that operate flights from Idaho 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 April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$747Average$1,044FlexibilityNo cancel feeOn-time76%

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