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Denmark

$273+ Cheap flights from Illinois 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CPH
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Illinois to Denmark

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Denmark (DK0). 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 January 21, 2025.

Round-trip from

$432
(Ticket)

One-way from

$281
(Kiwi.com)

Good round-trip deal

$486 or less

Good one-way deal

$263 or less
From Illinois to Denmark
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One-way flight from Illinois to Denmark
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Price to beat on a round-trip flight from Illinois to Denmark.
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Price to beat on a one-way flight from Illinois to Denmark.
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Find flight deals from Illinois to Denmark

Cheapest flights from Illinois to Denmark
Explore the most affordable flight options available from Illinois to Denmark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/36:30 pmORD - CPH
1 stop18h 20mIcelandair
Mon 3/1012:55 pmCPH - ORD
1 stop11h 25mIcelandair
Deal found 1/20$431
This oojo deal was found by Cheapflights users on 1/21. 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.
Fri 1/318:20 pmORD - CPH
1 stop20h 20mTAP AIR PORTUGAL
Fri 2/76:00 amCPH - ORD
1 stop16h 30mTAP AIR PORTUGAL
Deal found 1/21$500
This Finnair deal was found by Cheapflights users on 1/19. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/29:30 pmORD - CPH
1 stop11h 45mFinnair
Wed 4/97:45 amCPH - ORD
1 stop17h 05mFinnair
Deal found 1/19$524
This Flightnetwork deal was found by Cheapflights users on 1/20. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/105:00 pmORD - BLL
1 stop15h 05mBritish Airways
Mon 2/174:15 pmBLL - ORD
1 stop33h 30mBritish Airways
Deal found 1/20$525
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/105:30 pmORD - BLL
2 stops14h 35mMultiple Airlines
Mon 2/174:15 pmBLL - ORD
1 stop28h 40mMultiple Airlines
Deal found 1/20$531
This Ticket deal was found by Cheapflights users on 1/19. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/44:58 pmORD - AAL
2 stops13h 47mMultiple Airlines
Tue 3/112:15 pmAAL - ORD
1 stop31h 15mMultiple Airlines
Deal found 1/19$536
This Finnair deal was found by Cheapflights users on 1/21. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/167:30 pmORD - CPH
1 stop12h 00mMultiple Airlines
Tue 3/2510:30 amCPH - ORD
1 stop15h 15mMultiple Airlines
Deal found 1/21$536
This Flightsearch deal was found by Cheapflights users on 1/20. 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 Flightsearch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/175:00 pmORD - CPH
1 stop13h 10mBritish Airways
Mon 2/248:20 pmCPH - ORD
2 stops25h 10mBritish Airways
Deal found 1/20$538
This Ticket deal was found by Cheapflights users on 1/19. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/42:59 pmORD - AAL
2 stops15h 46mAir France
Tue 3/1110:15 amAAL - ORD
2 stops17h 11mAir France
Deal found 1/19$544
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/103:59 pmORD - BLL
2 stops16h 06mAmerican Airlines
Mon 2/174:15 pmBLL - ORD
2 stops32h 40mAmerican Airlines
Deal found 1/20$545
This KLM deal was found by Cheapflights users on 1/20. 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.
Wed 3/54:25 pmORD - BLL
1 stop23h 20mKLM
Wed 3/1210:15 amBLL - ORD
1 stop11h 15mKLM
Deal found 1/20$548
This Air France deal was found by Cheapflights users on 1/21. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/54:58 pmORD - BLL
2 stops13h 32mAir France
Wed 3/1210:15 amBLL - ORD
1 stop11h 15mAir France
Deal found 1/21$554

Find flights from Illinois to Denmark within your budget

Customize your flight search to find flights from Illinois 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 January 21, 2025.

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Fly to

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Route

Depart

Return

Price

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Mon 2/17

6:30 pm-7:50 pm

1 stop18h 20m

Kastrup Copenhagen

Mon 2/24

8:50 pm-5:20 pm

1 stop27h 30m

$432

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Fri 1/31

8:20 pm-11:40 pm

1 stop20h 20m

Kastrup Copenhagen

Fri 2/7

6:00 am-3:30 pm

1 stop16h 30m

$500

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Tue 3/4

4:00 pm-10:05 am

1 stop11h 05m

Kastrup Copenhagen

Tue 3/11

6:55 am-6:45 pm

2 stops17h 50m

$510

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Wed 3/26

5:22 pm-11:40 pm

2 stops24h 18m

Kastrup Copenhagen

Mon 3/31

6:00 am-7:44 am

2 stops32h 44m

$517

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Mon 2/10

5:00 pm-3:05 pm

1 stop15h 05m

Billund

Mon 2/17

4:15 pm-6:45 pm

1 stop33h 30m

$525

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Mon 2/10

5:30 pm-3:05 pm

2 stops14h 35m

Billund

Mon 2/17

4:15 pm-1:55 pm

1 stop28h 40m

$531

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Sun 3/23

11:42 am-11:20 am

2 stops17h 38m

Kastrup Copenhagen

Tue 4/1

1:15 pm-5:50 pm

1 stop11h 35m

$534

ChicagoAalborg

ORD - AAL

ORDAAL

Chicago O'Hare Intl

Tue 3/4

4:58 pm-1:45 pm

2 stops13h 47m

Aalborg

Tue 3/11

2:15 pm-3:30 pm

1 stop31h 15m

$536

ChicagoAalborg

ORD - AAL

ORDAAL

Chicago O'Hare Intl

Tue 3/4

2:59 pm-1:45 pm

2 stops15h 46m

Aalborg

Tue 3/11

10:15 am-9:26 pm

2 stops17h 11m

$544

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Mon 2/10

3:59 pm-3:05 pm

2 stops16h 06m

Billund

Mon 2/17

4:15 pm-5:55 pm

2 stops32h 40m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 50 results
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Best time to book a flight from Illinois to Denmark

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

Travel insights for flights from Illinois to Denmark

Get recent, data-driven insights about flights from Illinois to Denmark including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Denmark (average of $523). Flying from Illinois to Denmark in June is currently the most expensive (average of $1,003). 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 IL to DK?

Find hourly flight availability from Illinois 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 January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Denmark as you normally would.

Rainfall in Denmark by month

Plan your trip to Denmark by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denmark ranges from 0.8 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Denmark when rainfall is around 0.8 in.

Temperature in Denmark by month

Plan your trip to Denmark by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denmark, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Denmark

Get insights into the airlines that provide service to Denmark. 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 Denmark. Reviews last updated January 21, 2025.
Peruse reviews from past customers who have flown with Air Canada, Turkish Airlines and Virgin Atlantic from Illinois to Denmark to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines
7.6
Good
786 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,600 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Denmark. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to Denmark one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $287. TAP AIR PORTUGAL flights start at $343 while deals on British Airways start at $408 one-way.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Illinois to Denmark (average of $523). Flying from Illinois to Denmark in June is currently the most expensive (average of $1,003). 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 Illinois to Denmark

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Denmark

Discover the top 10 airlines that operate flights from Illinois 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$377Average$611FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$438Average$787FlexibilityNo cancel feeOn-time77%
FinnairCheapest$476Average$691FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$488Average$745FlexibilityNo cancel feeOn-time76%
KLMCheapest$501Average$952FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$503Average$654FlexibilityNo cancel feeOn-time69%
SWISSCheapest$509Average$626FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$521Average$636FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$530Average$738FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$532Average$675FlexibilityNo cancel feeOn-time70%
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