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Keflavik Intl

$605+ Cheap flights from Boise (BOI) 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — KEF
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap 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 July 29, 2025.

Round-trip from

$605
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$974
From Boise Air Term. Gowen Fld to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 11% potential increase in price ($132 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/28. 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 12/39:50 amBOI - KEF
1 stop13h 25mMultiple Airlines
Wed 12/105:05 pmKEF - BOI
1 stop12h 15mMultiple Airlines
Deal found 7/28$605
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/228:20 amBOI - KEF
1 stop18h 10mUnited Airlines
Mon 8/259:50 amKEF - BOI
2 stops37h 08mUnited Airlines
Deal found 7/28$685
This Ovago deal was found by Cheapflights users on 7/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:42 pmBOI - KEF
2 stops26h 53mLufthansa
Thu 8/281:15 amKEF - BOI
2 stops25h 59mLufthansa
Deal found 7/27$956
This KLM deal was found by Cheapflights users on 7/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/910:24 amBOI - KEF
1 stop14h 36mKLM
Sat 8/239:30 amKEF - BOI
1 stop20h 26mKLM
Deal found 7/26$970
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 12/37:05 pmBOI - KEF
2 stops28h 10mAlaska Airlines
Wed 12/104:50 pmKEF - BOI
1 stop14h 00mAlaska Airlines
Deal found 7/28$995
This Air Canada deal was found by Cheapflights users on 7/27. 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 8/2210:45 amBOI - KEF
3 stops15h 30mAir Canada
Fri 8/299:30 amKEF - BOI
3 stops17h 44mAir Canada
Deal found 7/27$1,362
This Gurufare deal was found by Cheapflights users on 7/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:23 amBOI - KEF
2 stops42h 52mFinnair
Sat 1/36:00 pmKEF - BOI
2 stops36h 02mFinnair
Deal found 7/27$1,434

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 July 29, 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

Wed 12/3

9:50 am-6:15 am

1 stop13h 25m

Reykjavik Keflavik Intl

Wed 12/10

5:05 pm-10:20 pm

1 stop12h 15m

$605

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Fri 8/22

8:20 am-8:30 am

1 stop18h 10m

Reykjavik Keflavik Intl

Mon 8/25

9:50 am-4:58 pm

2 stops37h 08m

$685

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Fri 8/22

2:42 pm-11:35 pm

2 stops26h 53m

Reykjavik Keflavik Intl

Thu 8/28

1:15 am-9:14 pm

2 stops25h 59m

$956

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Sat 8/9

10:24 am-7:00 am

1 stop14h 36m

Reykjavik Keflavik Intl

Sat 8/23

9:30 am-11:56 pm

1 stop20h 26m

$970

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Wed 12/3

7:05 pm-6:15 am

2 stops28h 10m

Reykjavik Keflavik Intl

Wed 12/10

4:50 pm-11:50 pm

1 stop14h 00m

$995

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Fri 8/22

10:45 am-8:15 am

3 stops15h 30m

Reykjavik Keflavik Intl

Fri 8/29

9:30 am-9:14 pm

3 stops17h 44m

$1,362

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Sat 12/27

7:23 am-9:15 am

2 stops42h 52m

Reykjavik Keflavik Intl

Sat 1/3

6:00 pm-11:02 pm

2 stops36h 02m

$1,434

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 July 29, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 14% 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 July 29, 2025.
Read through reviews of airlines operating flights from Boise to Reykjavik Keflavik Intl Airport, such as Alaska Airlines, KLM, and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
KLM
7.8
Good
1,383 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Finnair
7.6
Good
1,316 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Air Canada
7.1
Good
9,826 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • What are the cheapest airlines flying from Boise to Reykjavik Keflavik Intl Airport round-trip?

    Our cheapest airline available from Boise to Reykjavik Keflavik Intl Airport is United Airlines. Our recent data shows that you can find tickets from as low as $685 on this airline. Additional options worth looking into are Lufthansa and KLM, starting at $956 and $970 round-trip.

  • 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.

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

    Currently, November is the cheapest month in which you can book a flight from Boise to Reykjavik Keflavik Intl Airport (average of $328). Flying from Boise to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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

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

Browse thousands of different options on Cheapflights for your next trip

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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$676Average$1,049FlexibilityNo cancel feeOn-time76%

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