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Denmark

$490+ Cheap flights from Idaho to Denmark

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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CPH
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Find flight deals from Idaho to Denmark

Cheapest flights from Idaho to Denmark
Explore the most affordable flight options available from Idaho to Denmark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:00 amGEG - CPH
2 stops31h 05mLufthansa
Sun 12/76:00 amCPH - GEG
2 stops21h 44mLufthansa
Deal found 11/26$575
This Cheapflightsfares deal was found by Cheapflights users on 11/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:00 amGEG - CPH
2 stops32h 05mLufthansa
Thu 12/47:05 amCPH - GEG
2 stops22h 54mLufthansa
Deal found 11/26$669
This Cheapflightsfares deal was found by Cheapflights users on 11/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:49 pmBOI - CPH
2 stops24h 16mLufthansa
Tue 12/96:50 amCPH - BOI
2 stops20h 53mLufthansa
Deal found 11/23$716
This Cheapflightsfares deal was found by Cheapflights users on 11/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2810:39 amBOI - CPH
2 stops28h 26mLufthansa
Fri 12/56:00 amCPH - BOI
2 stops20h 07mLufthansa
Deal found 11/24$718
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Tue 12/232:07 pmJAC - CPH
3 stops39h 58mUnited Airlines
Tue 12/301:10 pmCPH - JAC
2 stops58h 14mUnited Airlines
Deal found 11/24$1,092
This Ovago deal was found by Cheapflights users on 11/23. 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.
Thu 12/43:54 pmBOI - CPH
1 stop15h 31mScandinavian Airlines
Tue 12/92:20 pmCPH - BOI
1 stop15h 45mScandinavian Airlines
Deal found 11/23$1,157
This KLM deal was found by Cheapflights users on 11/25. 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.
Fri 11/2811:10 amBOI - CPH
2 stops18h 35mMultiple Airlines
Fri 12/52:20 pmCPH - BOI
1 stop15h 45mMultiple Airlines
Deal found 11/25$1,879
This KLM deal was found by Cheapflights users on 11/23. 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.
Thu 12/42:04 pmBOI - CPH
2 stops18h 11mMultiple Airlines
Tue 12/92:20 pmCPH - BOI
1 stop15h 45mMultiple Airlines
Deal found 11/23$2,283
This Delta deal was found by Cheapflights users on 11/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:55 pmJAC - CPH
1 stop16h 30mDelta
Tue 12/306:00 amCPH - JAC
2 stops19h 00mDelta
Deal found 11/26$2,754
This Delta deal was found by Cheapflights users on 11/25. 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.
Wed 12/32:46 pmGEG - CPH
1 stop15h 39mDelta
Sun 12/72:20 pmCPH - GEG
1 stop32h 46mDelta
Deal found 11/25$5,319
This Delta deal was found by Cheapflights users on 11/24. 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.
Fri 11/287:45 amBOI - CPH
1 stop23h 40mDelta
Fri 12/52:20 pmCPH - BOI
1 stop15h 45mDelta
Deal found 11/24$5,322
This Delta deal was found by Cheapflights users on 11/24. 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 12/22:46 pmGEG - CPH
1 stop15h 39mDelta
Sun 12/71:15 pmCPH - GEG
2 stops31h 55mDelta
Deal found 11/24$5,344

Cheap flight deals from Idaho to Denmark

Keep the following information in mind while searching for Idaho to Denmark flight deals. Data was last updated November 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$490
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$665
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Kastrup Copenhagen flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Kastrup Copenhagen flights.
Search Deals
From Idaho to Denmark
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($79 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Denmark 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 November 26, 2025.
Use the filters below to find and compare flights from Idaho to Denmark that are best for you.

Fly from

Idaho

Fly to

Denmark

Route

Depart

Return

Price

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Wed 3/18

8:39 am-2:00 pm

2 stops46h 21m

Kastrup Copenhagen

Fri 4/3

12:25 pm-4:49 pm

2 stops36h 24m

$490

JacksonCopenhagen

JAC - CPH

JACCPH

Jackson Hole

Thu 1/29

2:40 pm-7:50 pm

2 stops21h 10m

Kastrup Copenhagen

Mon 2/2

8:10 am-7:06 pm

2 stops42h 56m

$539

SpokaneCopenhagen

GEG - CPH

GEGCPH

Spokane

Thu 1/8

6:53 am-12:25 pm

2 stops20h 32m

Kastrup Copenhagen

Thu 1/15

8:55 am-7:16 pm

2 stops19h 21m

$543

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Fri 2/6

9:15 am-1:00 pm

2 stops19h 45m

Kastrup Copenhagen

Tue 2/10

6:45 am-8:55 pm

2 stops22h 10m

$545

SpokaneCopenhagen

GEG - CPH

GEGCPH

Spokane

Fri 2/6

11:25 am-1:00 pm

2 stops16h 35m

Kastrup Copenhagen

Tue 2/10

6:45 am-7:54 pm

2 stops22h 09m

$545

SpokaneCopenhagen

GEG - CPH

GEGCPH

Spokane

Thu 1/8

11:25 am-1:00 pm

2 stops16h 35m

Kastrup Copenhagen

Thu 1/15

9:55 am-7:54 pm

2 stops18h 59m

$550

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Wed 3/18

7:00 am-12:15 pm

2 stops22h 15m

Kastrup Copenhagen

Fri 4/3

7:25 pm-10:36 pm

2 stops35h 11m

$556

SpokaneCopenhagen

GEG - CPH

GEGCPH

Spokane

Sat 1/10

11:25 am-11:45 am

2 stops39h 20m

Kastrup Copenhagen

Sat 1/17

1:10 pm-10:44 am

2 stops54h 34m

$580

SpokaneCopenhagen

GEG - CPH

GEGCPH

Spokane

Mon 2/23

1:44 pm-5:35 pm

2 stops18h 51m

Kastrup Copenhagen

Tue 3/3

6:50 am-9:07 pm

2 stops23h 17m

$605

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Thu 4/30

1:25 pm-4:15 pm

2 stops18h 50m

Kastrup Copenhagen

Mon 5/11

8:50 am-9:07 pm

2 stops20h 17m

$606

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 27 results
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Best time to book a flight from Idaho to Denmark

Have a flexible travel schedule? Discover the best time to fly to Denmark 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 Denmark

What is the cheapest month to book a flight from Idaho to Denmark?

Currently, September is the cheapest month in which you can book a flight from Idaho to Denmark (average of $588). Flying from Idaho to Denmark in December is currently the most expensive (average of $1,634). 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.

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

Find hourly flight availability from Idaho to Denmark. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Idaho to Denmark in the morning. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight in the evening.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Denmark. 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 Denmark?

    Departing from Idaho to Denmark will take you 20h 32m. There are 4740 mi between Idaho and Denmark. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Idaho to Denmark?

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

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

    Yes. Cheapflights offers flight deals from Idaho to Denmark 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 Denmark?

    Currently, September is the cheapest month in which you can book a flight from Idaho to Denmark (average of $588). Flying from Idaho to Denmark in December is currently the most expensive (average of $1,634). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Idaho to Denmark

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Idaho to Denmark

Discover the top 3 airlines that operate flights from Idaho to Denmark. 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$590Average$807FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$642Average$1,027FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$665Average$774FlexibilityNo cancel feeOn-time69%

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