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Denmark

$176+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CPH
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Illinois to Denmark

Keep the following information in mind while searching for Illinois to Denmark flight deals. Data was last updated September 16, 2025.

Round-trip from

$456
(Scandinavian Airlines)

One-way from

$176
(oojo)

Popular in

June

Cheapest in

February

Average price

$589

Good round-trip deal

$445 or less

Good one-way deal

$373 or less
From Illinois to Denmark
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One-way flight from Illinois to Denmark
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Highest demand for flights based on searches. 19% potential increase in price ($150 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 16, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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 12/47:10 pmORD - CPH
1 stop28h 50mScandinavian Airlines
Sun 12/72:30 pmCPH - ORD
Nonstop9h 15mScandinavian Airlines
Deal found 9/15$456
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:31 amORD - CPH
1 stop13h 29mScandinavian Airlines
Thu 12/112:30 pmCPH - ORD
Nonstop9h 15mScandinavian Airlines
Deal found 9/15$458
This SmartFares deal was found by Cheapflights users on 9/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:20 pmORD - CPH
1 stop29h 50mScandinavian Airlines
Sat 11/82:30 pmCPH - ORD
Nonstop9h 15mScandinavian Airlines
Deal found 9/14$463
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:20 pmORD - CPH
Nonstop8h 05mScandinavian Airlines
Wed 12/102:30 pmCPH - ORD
Nonstop9h 15mScandinavian Airlines
Deal found 9/13$466
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Sun 10/510:15 pmORD - CPH
1 stop31h 40mIcelandair
Sun 10/194:45 pmCPH - ORD
1 stop32h 30mIcelandair
Deal found 9/14$467
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:10 pmORD - CPH
1 stop15h 35mTAP AIR PORTUGAL
Fri 12/126:00 amCPH - ORD
1 stop16h 15mTAP AIR PORTUGAL
Deal found 9/13$472
This oojo deal was found by Cheapflights users on 9/14. 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.
Thu 10/27:25 pmORD - CPH
1 stop10h 35mIcelandair
Sun 10/194:45 pmCPH - ORD
1 stop32h 30mIcelandair
Deal found 9/14$473
This Mytrip deal was found by Cheapflights users on 9/15. 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 10/67:25 pmORD - CPH
1 stop10h 30mIcelandair
Mon 10/2010:35 pmCPH - ORD
1 stop26h 40mIcelandair
Deal found 9/15$474
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 12/27:10 amORD - CPH
1 stop16h 50mScandinavian Airlines
Fri 12/122:30 pmCPH - ORD
Nonstop9h 15mScandinavian Airlines
Deal found 9/15$475
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Sun 9/2110:15 pmORD - CPH
1 stop31h 40mIcelandair
Tue 9/304:45 pmCPH - ORD
1 stop32h 30mIcelandair
Deal found 9/15$476
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 12/57:20 pmORD - CPH
Nonstop8h 05mScandinavian Airlines
Wed 12/102:30 pmCPH - ORD
Nonstop9h 15mScandinavian Airlines
Deal found 9/15$478
This Vliegwinkel deal was found by Cheapflights users on 9/15. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:50 pmORD - AAL
1 stop30h 30mScandinavian Airlines
Thu 11/66:20 amAAL - ORD
1 stop17h 25mScandinavian Airlines
Deal found 9/15$533

Cheapflights Fare Finder

 
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 September 16, 2025.
Use the filters below to find and compare flights from Illinois to Denmark that are best for you.

Fly from

Illinois

Fly to

Denmark

Route

Depart

Return

Price

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Wed 2/11

6:50 pm-7:00 am

1 stop29h 10m

Kastrup Copenhagen

Mon 2/23

2:30 pm-4:45 pm

Nonstop9h 15m

$488

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Wed 2/11

6:50 pm-7:00 am

1 stop29h 10m

Kastrup Copenhagen

Sat 2/21

2:30 pm-4:45 pm

Nonstop9h 15m

$488

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Thu 12/4

7:20 pm-10:25 am

Nonstop8h 05m

Kastrup Copenhagen

Wed 12/10

2:30 pm-4:45 pm

Nonstop9h 15m

$495

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Sat 11/29

7:20 pm-10:25 am

Nonstop8h 05m

Kastrup Copenhagen

Sat 12/6

2:30 pm-4:45 pm

Nonstop9h 15m

$525

ChicagoAalborg

ORD - AAL

ORDAAL

Chicago O'Hare Intl

Thu 10/30

8:50 pm-9:20 am

1 stop30h 30m

Aalborg

Thu 11/6

6:20 am-4:45 pm

1 stop17h 25m

$533

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Wed 3/11

7:50 pm-2:05 pm

1 stop12h 15m

Kastrup Copenhagen

Mon 3/16

6:55 am-8:05 am

2 stops31h 10m

$534

ChicagoAarhus

ORD - AAR

ORDAAR

Chicago O'Hare Intl

Wed 10/29

11:10 pm-3:50 pm

2 stops34h 40m

Aarhus

Wed 11/5

4:25 pm-4:45 pm

2 stops31h 20m

$539

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Sun 2/15

4:10 pm-2:00 pm

1 stop14h 50m

Kastrup Copenhagen

Sun 2/22

6:50 am-7:30 pm

2 stops19h 40m

$541

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Sun 10/26

7:50 pm-2:00 pm

1 stop12h 10m

Kastrup Copenhagen

Sun 11/2

2:30 pm-11:34 pm

2 stops16h 04m

$543

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Sat 2/14

8:15 pm-12:25 pm

2 stops33h 10m

Kastrup Copenhagen

Sat 2/28

10:05 am-3:20 pm

1 stop12h 15m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 58 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Denmark

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 $911). 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 September 16, 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.

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.

  • How long is the flight from Illinois to Denmark?

    For as low as $534, Scandinavian Airlines can have you in Denmark from Illinois in 12h 15m. The distance between Illinois and Denmark is about 4256 mi. This flight may include one or multiple stops.

  • 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 $911). 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$396Average$624FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$435Average$787FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$471Average$1,015FlexibilityNo cancel feeOn-time76%
FinnairCheapest$476Average$696FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$489Average$718FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$511Average$683FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$531Average$658FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$533Average$703FlexibilityNo cancel feeOn-time67%
SWISSCheapest$560Average$821FlexibilityNo cancel feeOn-time79%
DeltaCheapest$611Average$746FlexibilityNo cancel feeOn-timeN/A

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