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Cheap flights from Idaho to Reykjavik from $419

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Reykjavik departing on 3/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Idaho to Reykjavik

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:30 pm - 9:30 am
BOI
-
KEF
28h 00m2 stops
Delta Logo
11:25 am - 10:28 pm
KEF
-
BOI
17h 03m2 stops
$493Delta
Sun, Apr 12 - Wed, Apr 22
Delta Logo
7:30 pm - 9:30 am
BOI
-
KEF
32h 00m2 stops
Delta Logo
11:25 am - 10:02 am
KEF
-
BOI
28h 37m2 stops
$508Delta
Mon, Apr 6 - Wed, May 6
Multiple Airlines Logo
5:40 am - 7:00 am
BOI
-
KEF
19h 20m1 stop
Multiple Airlines Logo
9:30 am - 11:29 pm
KEF
-
BOI
19h 59m1 stop
$553Multiple Airlines
Fri, May 8 - Wed, May 13
Multiple Airlines Logo
9:05 am - 6:15 am
GEG
-
KEF
13h 10m1 stop
Multiple Airlines Logo
5:00 pm - 9:25 pm
KEF
-
GEG
12h 25m1 stop
$622Multiple Airlines
Mon, Jan 19 - Mon, Jan 26
Multiple Airlines Logo
11:35 am - 6:15 am
BOI
-
KEF
11h 40m1 stop
Multiple Airlines Logo
5:00 pm - 11:01 pm
KEF
-
BOI
13h 01m1 stop
$633Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Delta Logo
2:05 pm - 7:00 am
GEG
-
KEF
9h 55m1 stop
Delta Logo
9:30 am - 11:04 pm
KEF
-
GEG
20h 34m1 stop
$646Delta
Wed, May 13 - Wed, May 20
KLM Logo
6:05 am - 7:00 am
GEG
-
KEF
17h 55m1 stop
KLM Logo
9:30 am - 11:04 pm
KEF
-
GEG
20h 34m1 stop
$648KLM
Wed, May 13 - Wed, May 20
Lufthansa Logo
2:40 pm - 1:10 am
BOI
-
KEF
27h 30m2 stops
Lufthansa Logo
3:20 pm - 9:29 pm
KEF
-
BOI
36h 09m2 stops
$707Lufthansa
Wed, Mar 4 - Tue, Mar 10
Lufthansa Logo
7:00 am - 2:20 pm
GEG
-
KEF
23h 20m2 stops
Lufthansa Logo
3:25 pm - 9:17 pm
KEF
-
GEG
37h 52m2 stops
$955Lufthansa
Thu, Feb 19 - Fri, Feb 27
Icelandair Logo
12:10 pm - 6:15 am
GEG
-
KEF
10h 05m1 stop
Icelandair Logo
5:00 pm - 9:25 pm
KEF
-
GEG
12h 25m1 stop
$983Icelandair
Thu, Jan 29 - Mon, Feb 2

Delta flights from Idaho to Reykjavik Keflavik Intl Airport

Our best Delta deals on Idaho to Reykjavik Keflavik Intl Airport flight tickets
Delta
Apr 12
BOI11:30 pmBoise Air Term. Gowen Fld
28h 00m
2 stops
KEF9:30 amReykjavik Keflavik Intl
Apr 22
KEF11:25 amReykjavik Keflavik Intl
17h 03m
2 stops
BOI10:28 pmBoise Air Term. Gowen Fld
$493
Find similar
Delta
Apr 6
BOI7:30 pmBoise Air Term. Gowen Fld
32h 00m
2 stops
KEF9:30 amReykjavik Keflavik Intl
May 6
KEF11:25 amReykjavik Keflavik Intl
28h 37m
2 stops
BOI10:02 amBoise Air Term. Gowen Fld
$508
Find similar
Delta
May 13
GEG2:05 pmSpokane
9h 55m
1 stop
KEF7:00 amReykjavik Keflavik Intl
May 20
KEF9:30 amReykjavik Keflavik Intl
20h 34m
1 stop
GEG11:04 pmSpokane
$646
Find similar

Lufthansa flights from Idaho to Reykjavik Keflavik Intl Airport

Our best Lufthansa deals on Idaho to Reykjavik Keflavik Intl Airport flight tickets
Lufthansa
Mar 4
BOI2:40 pmBoise Air Term. Gowen Fld
27h 30m
2 stops
KEF1:10 amReykjavik Keflavik Intl
Mar 10
KEF3:20 pmReykjavik Keflavik Intl
36h 09m
2 stops
BOI9:29 pmBoise Air Term. Gowen Fld
$707
Find similar
Lufthansa
Feb 19
GEG7:00 amSpokane
23h 20m
2 stops
KEF2:20 pmReykjavik Keflavik Intl
Feb 27
KEF3:25 pmReykjavik Keflavik Intl
37h 52m
2 stops
GEG9:17 pmSpokane
$955
Find similar
Lufthansa
Jan 8
BOI8:15 amBoise Air Term. Gowen Fld
23h 05m
2 stops
KEF2:20 pmReykjavik Keflavik Intl
Jan 13
KEF3:20 pmReykjavik Keflavik Intl
33h 47m
2 stops
BOI6:07 pmBoise Air Term. Gowen Fld
$1,708
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to Reykjavik Keflavik Intl Airport 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, momondo users made 832,500 searches. Data last updated December 22, 2025.
Use the filters below to find and compare flights from Idaho to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Sun 4/12

11:30 pm-9:30 am

2 stops28h 00m

Reykjavik Keflavik Intl

Wed 4/22

11:25 am-10:28 pm

2 stops17h 03m

$493

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Mon 4/6

7:30 pm-9:30 am

2 stops32h 00m

Reykjavik Keflavik Intl

Wed 5/6

11:25 am-10:02 am

2 stops28h 37m

$508

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Fri 5/8

5:40 am-7:00 am

1 stop19h 20m

Reykjavik Keflavik Intl

Wed 5/13

9:30 am-11:29 pm

1 stop19h 59m

$553

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

Mon 1/19

9:05 am-6:15 am

1 stop13h 10m

Reykjavik Keflavik Intl

Mon 1/26

5:00 pm-9:25 pm

1 stop12h 25m

$622

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Tue 2/3

11:35 am-6:15 am

1 stop11h 40m

Reykjavik Keflavik Intl

Tue 2/10

5:00 pm-11:01 pm

1 stop13h 01m

$633

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

Wed 5/13

2:05 pm-7:00 am

1 stop9h 55m

Reykjavik Keflavik Intl

Wed 5/20

9:30 am-11:04 pm

1 stop20h 34m

$646

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

Wed 5/13

6:05 am-7:00 am

1 stop17h 55m

Reykjavik Keflavik Intl

Wed 5/20

9:30 am-11:04 pm

1 stop20h 34m

$648

BoiseReykjavik

BOI - KEF

BOIKEF

Boise Air Term. Gowen Fld

Wed 3/4

2:40 pm-1:10 am

2 stops27h 30m

Reykjavik Keflavik Intl

Tue 3/10

3:20 pm-9:29 pm

2 stops36h 09m

$707

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

Thu 2/19

7:00 am-2:20 pm

2 stops23h 20m

Reykjavik Keflavik Intl

Fri 2/27

3:25 pm-9:17 pm

2 stops37h 52m

$955

SpokaneReykjavik

GEG - KEF

GEGKEF

Spokane

Thu 1/29

12:10 pm-6:15 am

1 stop10h 05m

Reykjavik Keflavik Intl

Mon 2/2

5:00 pm-9:25 pm

1 stop12h 25m

$983

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Idaho to Reykjavik Keflavik Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest day to depart from Idaho to Reykjavik Keflavik Intl Airport is on a Wednesday when prices can be found for as low as $796. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Monday, with ticket prices averaging around $984.

What is the cheapest time of day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is in the morning when flights can be purchased for as low as $867. Flights at noon are often more expensive with an average ticket price of $998.

Can stopping save me money on Idaho to Reykjavik Keflavik Intl Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Idaho to Reykjavik Keflavik Intl Airport flight.

Cheap Idaho to Reykjavik Keflavik Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Reykjavik Keflavik Intl Airport

Fastest flight time

9h 35m

Direct flights

None
The fastest flight from Idaho to Reykjavik Keflavik Intl Airport takes 9h 35m
There are no direct flights from Idaho to Reykjavik Keflavik Intl Airport. There are no popular flight routes from Idaho to Reykjavik Keflavik Intl Airport.
Search flight deals

  • When did momondo last update prices for flights from Idaho to Reykjavik Keflavik Intl Airport?

    Prices for flights from Idaho to Reykjavik Keflavik Intl Airport are updated daily.

  • How many operators does momondo search for flights from Idaho to Reykjavik Keflavik Intl Airport?

  • How old do you have to be to fly from Idaho to Reykjavik Keflavik Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho to Reykjavik Keflavik Intl Airport.

  • What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?

    The travel and health documents you'll need for your trip to Reykjavik Keflavik Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Reykjavik Keflavik Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Reykjavik Keflavik Intl Airport

Compare and see reviews for airlines that fly from Idaho to Reykjavik Keflavik Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $386Free CancellationRating
7.0
592 reviews
Search Icelandair flights

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Keflavik
Selfoss
Hella
Hveragerdi
Borgarnes
Grindavik
Kopavogur

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Reykjavik?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to Reykjavik. momondo saves you time and could save you money on your trip.

Can I find flights from Idaho to Reykjavik with flexible booking policies on momondo?

Flights from Idaho to Reykjavik with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho to Reykjavik?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho to Reykjavik.

I’m not ready to book a flight from Idaho to Reykjavik right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Reykjavik from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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