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$382+ Cheap flights from Denmark to Illinois

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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — ORD
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Denmark to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Denmark (DK0) to Illinois (USIL). 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 December 18, 2024.

Round-trip from

$411
(ResecentrumGruppen)

One-way from

$382
(oojo)
From Denmark to Illinois
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One-way flight from Denmark to Illinois
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Find flight deals from Denmark to Illinois

Cheapest flights from Denmark to Illinois
Explore the most affordable flight options available from Denmark to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. 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 12/276:50 amCPH - ORD
2 stops14h 55mMultiple Airlines
Tue 12/313:15 pmORD - CPH
1 stop11h 00mMultiple Airlines
Deal found 12/17$545
This Air Canada deal was found by Cheapflights users on 12/17. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/286:55 amCPH - ORD
2 stops14h 50mAir Canada
Tue 12/314:00 pmORD - CPH
1 stop11h 05mAir Canada
Deal found 12/17$546
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/259:45 amCPH - ORD
1 stop13h 30mUnited Airlines
Tue 12/319:50 amORD - CPH
1 stop17h 15mUnited Airlines
Deal found 12/18$556
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2211:25 amCPH - ORD
1 stop34h 05mIberia
Thu 1/94:45 pmORD - CPH
1 stop19h 20mIberia
Deal found 12/16$641
This Delta deal was found by Cheapflights users on 12/18. 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 12/256:00 amCPH - MDW
2 stops18h 11mDelta
Tue 12/3111:48 amMDW - CPH
2 stops16h 32mDelta
Deal found 12/18$654
This Delta deal was found by Cheapflights users on 12/18. 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 12/2512:05 pmCPH - ORD
2 stops16h 12mDelta
Tue 12/3110:30 amORD - CPH
2 stops17h 50mDelta
Deal found 12/18$654
This SWISS deal was found by Cheapflights users on 12/17. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:50 amCPH - ORD
1 stop16h 25mSWISS
Mon 12/305:55 pmORD - CPH
2 stops13h 05mSWISS
Deal found 12/17$679
This oojo deal was found by Cheapflights users on 12/18. 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.
Mon 12/231:35 pmCPH - ORD
Nonstop9h 15mScandinavian Airlines
Mon 12/307:10 pmORD - CPH
Nonstop7h 55mScandinavian Airlines
Deal found 12/18$729
This deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/181:35 pmCPH - ORD
1 stop13h 30mLufthansa
Wed 1/19:25 pmORD - CPH
1 stop13h 05mLufthansa
Deal found 12/17$879
This deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/187:00 amCPH - ORD
1 stop14h 05mAustrian Airlines
Fri 1/34:20 pmORD - CPH
1 stop12h 05mAustrian Airlines
Deal found 12/17$886
This FlightHub deal was found by Cheapflights users on 12/17. 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.
Sat 12/217:50 pmCPH - ORD
2 stops55h 00mLOT
Sun 1/59:55 pmORD - CPH
2 stops52h 40mLOT
Deal found 12/17$1,035
This oojo deal was found by Cheapflights users on 12/18. 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.
Mon 12/237:50 pmCPH - ORD
3 stops42h 50mEthiopian Air
Mon 12/309:45 amORD - CPH
2 stops39h 55mEthiopian Air
Deal found 12/18$2,615

Find flights from Denmark to Illinois within your budget

Customize your flight search to find flights from Denmark to Illinois 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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 1/24

6:50 am-11:30 pm

2 stops23h 40m

Lambert-St Louis

Wed 1/29

12:55 pm-12:40 pm

2 stops16h 45m

$411

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 1/24

8:45 pm-6:23 pm

2 stops28h 38m

Lambert-St Louis

Wed 1/29

2:10 pm-1:05 pm

2 stops15h 55m

$414

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Mon 1/27

8:50 pm-5:20 pm

1 stop27h 30m

Chicago O'Hare Intl

Sun 2/9

6:30 pm-11:45 am

1 stop10h 15m

$416

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Mon 1/27

6:40 am-1:55 pm

1 stop14h 15m

Chicago O'Hare Intl

Sun 2/9

6:30 pm-5:40 pm

2 stops16h 10m

$421

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Mon 1/27

8:20 pm-6:45 pm

1 stop29h 25m

Chicago O'Hare Intl

Sun 2/9

5:00 pm-2:20 pm

1 stop14h 20m

$425

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Mon 1/27

8:20 pm-2:45 pm

1 stop25h 25m

Chicago O'Hare Intl

Sun 2/9

6:35 pm-2:20 pm

1 stop12h 45m

$429

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Mon 1/27

10:50 am-6:45 pm

1 stop14h 55m

Chicago O'Hare Intl

Sun 2/9

2:51 pm-2:20 pm

2 stops16h 29m

$439

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 1/24

11:00 am-10:09 pm

2 stops18h 09m

Lambert-St Louis

Wed 1/29

2:10 pm-2:20 pm

2 stops17h 10m

$455

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Tue 1/14

6:55 am-2:45 pm

2 stops14h 50m

Chicago O'Hare Intl

Tue 1/21

2:15 pm-2:10 pm

2 stops16h 55m

$461

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 1/24

6:50 am-1:55 pm

1 stop14h 05m

Lambert-St Louis

Wed 1/29

1:02 pm-11:25 am

2 stops15h 23m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 46 results
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Best time to book a flight from Denmark to Illinois

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

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

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

Currently, September is the cheapest month in which you can book a flight from Denmark to Illinois (average of $232). Flying from Denmark to Illinois in June is currently the most expensive (average of $308). 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 DK to IL?

Find hourly flight availability from Denmark to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

When flying from Denmark to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated December 18, 2024.
Get a feel of what it's like to fly with American Airlines, Scandinavian Airlines and SWISS from Denmark to Illinois by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

LOT
7.6
Good
1,133 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines
7.6
Good
787 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Denmark to Illinois. 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 Denmark to Illinois one-way?

    The cheapest airlines for a one-way flight from Denmark to Illinois are Icelandair ($382), Air Serbia ($388), and TAP AIR PORTUGAL ($458).

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Denmark to Illinois (average of $232). Flying from Denmark to Illinois in June is currently the most expensive (average of $308). 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 Denmark to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Denmark to Illinois

Discover the top 7 airlines that operate flights from Denmark to Illinois. 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$352Average$449FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$401Average$500FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$405Average$510FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$427Average$646FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$430Average$669FlexibilityNo cancel feeOn-time76%
KLMCheapest$463Average$801FlexibilityNo cancel feeOn-time75%
Scandinavian AirlinesCheapest$489Average$611FlexibilityNo cancel feeOn-time77%
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