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Keflavik Intl

$646+ Cheap flights from Idaho to Keflavik Intl (KEF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — KEF
ene. 15 — ene. 221
jue. 1/15
jue. 1/22
1 adult, Economy
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Cheap 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 diciembre 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
mar. 12/165:00 amGEG - KEF
1 stop17h 15mMultiple Airlines
mar. 12/235:10 pmKEF - GEG
2 stops37h 50mMultiple Airlines
Deal found 12/15$1,590
This Expedia deal was found by Cheapflights users on 12/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/153:24 pmGEG - KEF
1 stop30h 51mMultiple Airlines
lun. 12/225:00 pmKEF - GEG
1 stop14h 10mMultiple Airlines
Deal found 12/14$1,636
This oojo deal was found by Cheapflights users on 12/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/165:00 amGEG - KEF
1 stop17h 15mIcelandair
mar. 12/235:00 pmKEF - GEG
1 stop14h 10mIcelandair
Deal found 12/15$1,950
This Icelandair deal was found by Cheapflights users on 12/15. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/309:55 amBOI - KEF
1 stop13h 20mMultiple Airlines
mar. 1/64:55 pmKEF - BOI
1 stop24h 45mMultiple Airlines
Deal found 12/15$2,060
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
jue. 12/185:43 amBOI - KEF
1 stop17h 32mMultiple Airlines
sáb. 12/204:30 pmKEF - BOI
2 stops38h 29mMultiple Airlines
Deal found 12/14$2,274
This oojo deal was found by Cheapflights users on 12/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/189:00 amBOI - KEF
1 stop14h 15mIcelandair
sáb. 12/205:00 pmKEF - BOI
1 stop11h 10mIcelandair
Deal found 12/14$2,380
This Alaska Airlines deal was found by Cheapflights users on 12/14. 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.
jue. 12/187:07 amBOI - KEF
2 stops16h 08mAlaska Airlines
sáb. 12/205:00 pmKEF - BOI
2 stops22h 18mAlaska Airlines
Deal found 12/14$2,725
This Priceline deal was found by Cheapflights users on 12/14. 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.
jue. 12/187:15 amBOI - KEF
2 stops27h 00mBritish Airways
sáb. 12/2011:55 amKEF - BOI
2 stops38h 46mBritish Airways
Deal found 12/14$3,177
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
jue. 12/1812:32 pmJAC - KEF
2 stops37h 43mMultiple Airlines
sáb. 12/205:00 pmKEF - JAC
1 stop29h 35mMultiple Airlines
Deal found 12/14$3,705

Find 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 diciembre 16, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$646
(Kiwi.com)
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Reykjavik (REK) flights.
Search Deals
From Idaho to Reykjavik Keflavik Intl
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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 diciembre 16, 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

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

jue. 1/29

7:30 am-6:15 am

1 stop14h 45m

Reykjavik Keflavik Intl

jue. 2/5

5:00 pm-9:25 pm

1 stop12h 25m

$646

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

mié. 5/13

2:05 pm-7:00 am

1 stop9h 55m

Reykjavik Keflavik Intl

mié. 5/20

9:30 am-11:04 pm

1 stop20h 34m

$668

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

mié. 5/13

6:20 am-7:00 am

2 stops17h 40m

Reykjavik Keflavik Intl

mié. 5/20

9:30 am-11:35 pm

2 stops21h 05m

$673

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

mar. 5/12

5:00 am-8:30 am

2 stops20h 30m

Reykjavik Keflavik Intl

vie. 5/22

12:00 pm-9:45 pm

1 stop16h 45m

$805

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

mar. 5/12

2:05 pm-7:00 am

1 stop9h 55m

Reykjavik Keflavik Intl

vie. 5/22

9:30 am-11:04 pm

1 stop20h 34m

$835

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

mié. 5/13

7:00 am-12:10 am

2 stops34h 10m

Reykjavik Keflavik Intl

mié. 5/20

12:00 pm-9:09 pm

2 stops16h 09m

$838

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

mié. 1/7

7:45 am-6:05 am

1 stop15h 20m

Reykjavik Keflavik Intl

mar. 1/13

4:55 pm-11:10 pm

1 stop13h 15m

$946

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

mié. 1/7

9:53 pm-6:15 am

2 stops25h 22m

Reykjavik Keflavik Intl

mar. 1/13

5:00 pm-9:05 pm

1 stop11h 05m

$1,108

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

mié. 1/21

11:35 am-6:15 am

1 stop11h 40m

Reykjavik Keflavik Intl

dom. 1/25

5:00 pm-9:05 pm

1 stop11h 05m

$1,198

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

mar. 12/30

9:55 am-6:15 am

1 stop13h 20m

Reykjavik Keflavik Intl

mar. 1/6

4:55 pm-10:40 am

1 stop24h 45m

$2,060

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 12 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 diciembre 16, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 9% on flights from Idaho to Reykjavik Keflavik Intl Airport by exploring options for tickets in the afternoon.

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.

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

    Airlines like KLM, Delta, and Alaska Airlines fly from Idaho to Reykjavik Keflavik Intl Airport in about 9h 55m. The time it takes to get you to your destination can typically vary by up to 15h 27m. There are 3475 mi between Idaho and Reykjavik Keflavik Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Most travelers choose Spokane - Reykjavik Keflavik Intl, Boise Air Term. Gowen Fld - 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.

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 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 diciembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$386Average$1,116FlexibilityNo cancel feeOn-time76%

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