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Denmark

$466+ Cheap flights from Idaho to Denmark

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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CPH
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/11. 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.
Wed 12/315:05 amGEG - CPH
2 stops22h 20mUnited Airlines
Sat 1/106:50 amCPH - GEG
2 stops37h 49mUnited Airlines
Deal found 11/11$555
This Scandinavian Airlines deal was found by Cheapflights users on 11/11. 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 Scandinavian Airlines 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 11/11$602
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Wed 11/262:31 pmBOI - CPH
2 stops24h 34mUnited Airlines
Wed 12/36:50 amCPH - BOI
2 stops23h 55mUnited Airlines
Deal found 11/13$687
This Delta deal was found by Cheapflights users on 11/13. 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 11/2611:10 amBOI - CPH
2 stops21h 25mDelta
Mon 12/82:15 pmCPH - BOI
2 stops33h 47mDelta
Deal found 11/13$695
This Cheapflightsfares deal was found by Cheapflights users on 11/12. 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.
Tue 12/27:00 amGEG - CPH
2 stops31h 05mLufthansa
Sun 12/76:50 amCPH - GEG
2 stops23h 09mLufthansa
Deal found 11/12$698
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Sun 11/306:20 amBOI - CPH
2 stops23h 15mUnited Airlines
Thu 12/47:05 amCPH - BOI
2 stops19h 02mUnited Airlines
Deal found 11/13$700
This Delta deal was found by Cheapflights users on 11/11. 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 12/26:00 amGEG - CPH
2 stops22h 10mDelta
Sun 12/76:00 amCPH - GEG
2 stops27h 11mDelta
Deal found 11/11$711
This Cheapflightsfares deal was found by Cheapflights users on 11/11. 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 stops19h 31mLufthansa
Tue 12/96:00 amCPH - BOI
2 stops20h 07mLufthansa
Deal found 11/11$712
This United Airlines deal was found by Cheapflights users on 11/11. 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 11/287:00 pmBOI - CPH
2 stops20h 05mUnited Airlines
Fri 12/510:10 amCPH - BOI
2 stops20h 35mUnited Airlines
Deal found 11/11$717
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Sun 11/306:20 amBOI - CPH
2 stops23h 15mUnited Airlines
Mon 12/82:20 pmCPH - BOI
2 stops36h 54mUnited Airlines
Deal found 11/13$719
This Delta deal was found by Cheapflights users on 11/12. 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 12/311:19 amGEG - CPH
2 stops18h 21mDelta
Sun 12/76:00 amCPH - GEG
2 stops18h 40mDelta
Deal found 11/12$719
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Thu 11/278:17 amBOI - CPH
2 stops25h 18mUnited Airlines
Mon 12/82:20 pmCPH - BOI
2 stops35h 47mUnited Airlines
Deal found 11/13$736

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 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$555
(United Airlines)

One-way from

$466
(Kiwi.com)

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
One-way flight from Idaho to Denmark
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($78 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 13, 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

Thu 12/4

3:54 pm-3:25 pm

1 stop15h 31m

Kastrup Copenhagen

Tue 12/9

2:20 pm-10:05 pm

1 stop15h 45m

$602

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Wed 3/18

6:20 am-12:25 pm

2 stops23h 05m

Kastrup Copenhagen

Fri 4/3

12:25 pm-6:00 pm

2 stops37h 35m

$668

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Wed 11/26

2:31 pm-11:05 pm

2 stops24h 34m

Kastrup Copenhagen

Thu 12/4

7:05 am-7:43 pm

2 stops20h 38m

$687

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Wed 11/26

2:31 pm-11:05 pm

2 stops24h 34m

Kastrup Copenhagen

Fri 12/5

6:50 am-7:14 pm

2 stops20h 24m

$687

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Sun 11/30

6:20 am-1:35 pm

2 stops23h 15m

Kastrup Copenhagen

Wed 12/3

10:05 am-10:45 pm

2 stops20h 40m

$700

SpokaneCopenhagen

GEG - CPH

GEGCPH

Spokane

Mon 1/12

6:00 am-4:15 pm

2 stops25h 15m

Kastrup Copenhagen

Thu 1/15

7:20 pm-6:49 pm

2 stops32h 29m

$708

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Fri 11/28

7:00 pm-11:05 pm

2 stops20h 05m

Kastrup Copenhagen

Fri 12/5

10:10 am-10:45 pm

2 stops20h 35m

$717

BoiseCopenhagen

BOI - CPH

BOICPH

Boise Air Term. Gowen Fld

Fri 11/28

2:47 pm-5:35 pm

2 stops18h 48m

Kastrup Copenhagen

Thu 12/4

7:05 am-9:25 pm

2 stops22h 20m

$717

SpokaneCopenhagen

GEG - CPH

GEGCPH

Spokane

Wed 12/3

9:25 am-5:00 pm

2 stops22h 35m

Kastrup Copenhagen

Sun 12/7

6:00 am-11:59 pm

2 stops26h 59m

$719

JacksonCopenhagen

JAC - CPH

JACCPH

Jackson Hole

Fri 3/27

4:25 pm-9:50 am

2 stops34h 25m

Kastrup Copenhagen

Tue 3/31

12:25 pm-8:53 pm

2 stops40h 28m

$723

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 20 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 13, 2025.

A simple way to save on the total cost of your ticket is to fly from Idaho to Denmark at noon. If you’re flexible enough to do this you can expect to save up to 38% 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 15h 31m. There are 4959 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

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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 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$590Average$780FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$642Average$1,003FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$665Average$775FlexibilityNo cancel feeOn-time69%

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