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$231+ Cheap flights from Illinois to Copenhagen (CPH)

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CPH
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Illinois to Copenhagen

Keep the following information in mind while searching for Illinois to Copenhagen flight deals. Data was last updated July 3, 2025.

Round-trip from

$557
(Flightsearch)

One-way from

$231
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$685

Good round-trip deal

$477 or less

Good one-way deal

$383 or less
From Illinois to Kastrup Copenhagen
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One-way flight from Illinois to Kastrup Copenhagen
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Highest demand for flights based on searches. 18% potential increase in price ($135 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Kastrup Copenhagen.
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Price to beat on a one-way flight from Illinois to Kastrup Copenhagen.
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Find flight deals from Illinois to Copenhagen

Cheapest flights from Illinois to Copenhagen
Explore the most affordable flight options available from Illinois to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Flightsearch deal was found by Cheapflights users on 7/3. 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 8/47:15 pmORD - CPH
Nonstop8h 30mScandinavian Airlines
Mon 8/181:05 pmCPH - ORD
1 stop17h 46mScandinavian Airlines
Deal found 7/3$557
This FlightHub deal was found by Cheapflights users on 7/1. 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 7/1510:15 pmORD - CPH
1 stop25h 05mIcelandair
Tue 7/227:20 amCPH - ORD
1 stop20h 55mIcelandair
Deal found 7/1$558
This Air Canada deal was found by Cheapflights users on 7/1. 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.
Sun 9/2110:40 amORD - CPH
1 stop13h 30mAir Canada
Wed 10/16:50 amCPH - ORD
2 stops15h 05mAir Canada
Deal found 7/1$559
This Delta deal was found by Cheapflights users on 7/2. 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 8/131:08 pmMDW - CPH
2 stops14h 32mDelta
Wed 8/209:00 amCPH - MDW
2 stops19h 44mDelta
Deal found 7/2$560
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Mon 8/188:00 pmORD - CPH
2 stops28h 10mUnited Airlines
Mon 8/258:50 amCPH - ORD
2 stops17h 58mUnited Airlines
Deal found 7/2$563
This Air Canada deal was found by Cheapflights users on 7/3. 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.
Thu 8/149:55 amORD - CPH
2 stops14h 15mMultiple Airlines
Thu 8/216:50 amCPH - ORD
2 stops15h 14mMultiple Airlines
Deal found 7/3$566
This Delta deal was found by Cheapflights users on 7/3. 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.
Sun 8/177:15 amORD - CPH
2 stops16h 15mDelta
Fri 8/2912:20 pmCPH - ORD
1 stop16h 15mDelta
Deal found 7/3$571
This Cheapflightsfares deal was found by Cheapflights users on 7/1. 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.
Sat 7/196:15 pmORD - CPH
1 stop23h 40mTAP AIR PORTUGAL
Sun 9/286:00 amCPH - ORD
1 stop17h 25mTAP AIR PORTUGAL
Deal found 7/1$577
This Finnair deal was found by Cheapflights users on 7/2. 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 9/175:40 pmORD - CPH
2 stops15h 35mFinnair
Thu 9/257:45 amCPH - ORD
2 stops16h 15mFinnair
Deal found 7/2$579
This SWISS deal was found by Cheapflights users on 7/1. 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.
Thu 9/48:08 pmORD - CPH
2 stops35h 07mSWISS
Tue 9/97:15 pmCPH - ORD
1 stop27h 40mSWISS
Deal found 7/1$585
This Virgin Atlantic deal was found by Cheapflights users on 7/2. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/147:00 amORD - CPH
1 stop16h 30mVirgin Atlantic
Thu 8/219:00 amCPH - ORD
2 stops21h 56mVirgin Atlantic
Deal found 7/2$591
This American Airlines deal was found by Cheapflights users on 7/1. 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 8/114:50 pmORD - CPH
1 stop11h 25mAmerican Airlines
Sat 8/167:50 amCPH - ORD
1 stop17h 25mAmerican Airlines
Deal found 7/1$594

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Copenhagen 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 July 3, 2025.
Use the filters below to find and compare flights from Illinois to Copenhagen that are best for you.

Fly from

Illinois

Fly to

Copenhagen

Route

Depart

Return

Price

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Mon 8/4

7:15 pm-10:45 am

Nonstop8h 30m

Kastrup Copenhagen

Mon 8/18

1:05 pm-11:51 pm

1 stop17h 46m

$557

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Tue 7/15

10:15 pm-6:20 am

1 stop25h 05m

Kastrup Copenhagen

Tue 7/22

7:20 am-9:15 pm

1 stop20h 55m

$558

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Sun 9/21

10:40 am-7:10 am

1 stop13h 30m

Kastrup Copenhagen

Wed 10/1

6:50 am-2:55 pm

2 stops15h 05m

$559

ChicagoCopenhagen

MDW - CPH

MDWCPH

Chicago Midway

Wed 8/13

1:08 pm-10:40 am

2 stops14h 32m

Kastrup Copenhagen

Wed 8/20

9:00 am-9:44 pm

2 stops19h 44m

$560

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Mon 8/18

10:50 am-11:05 am

2 stops17h 15m

Kastrup Copenhagen

Mon 8/25

8:50 am-11:15 pm

2 stops21h 25m

$563

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Thu 8/14

9:55 am-7:10 am

2 stops14h 15m

Kastrup Copenhagen

Thu 8/21

6:50 am-3:04 pm

2 stops15h 14m

$566

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Sun 8/17

7:15 am-6:30 am

2 stops16h 15m

Kastrup Copenhagen

Wed 8/27

12:20 pm-9:35 pm

1 stop16h 15m

$571

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Sat 7/19

6:15 pm-12:55 am

1 stop23h 40m

Kastrup Copenhagen

Sun 9/28

6:00 am-4:25 pm

1 stop17h 25m

$577

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Wed 9/17

5:40 pm-4:15 pm

2 stops15h 35m

Kastrup Copenhagen

Thu 9/25

7:45 am-5:00 pm

2 stops16h 15m

$579

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Thu 9/4

8:08 pm-2:15 pm

2 stops35h 07m

Kastrup Copenhagen

Mon 9/8

8:10 pm-3:55 pm

1 stop26h 45m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 41 results
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Best time to book a flight from Illinois to Copenhagen

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

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Copenhagen (average of $523). Flying from Illinois to Copenhagen in June is currently the most expensive (average of $915). 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 CPH?

Find hourly flight availability from Illinois to Copenhagen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

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

How much does it cost to fly round-trip from Illinois to Copenhagen?

Reviews of airlines servicing Copenhagen

Get insights into the airlines that provide service to Copenhagen. 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 Copenhagen. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from Illinois to Copenhagen, such as Delta, KLM, and Finnair. 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
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,306 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,654 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What airport do you fly into for flights to Copenhagen from Illinois?

    For a flight from Illinois to Copenhagen, you will be flying into Kastrup Copenhagen. Kastrup Copenhagen (CPH) is just 5.0 mi from the center of the city.

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

    $316 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Delta and British Airways, with prices starting from $321 and $330, respectively.

  • What are the most popular routes from Illinois to Copenhagen?

    While some choose either Chicago Midway - Kastrup Copenhagen or Lambert-St Louis - Kastrup Copenhagen, Chicago O'Hare Intl - Kastrup Copenhagen is the most popular route from Illinois to Copenhagen.

  • What are the cheapest flights from Illinois to Copenhagen?

    Looking at all options, your cheapest flight can be booked for $367. While the most popular route (Chicago O'Hare Intl - Kastrup Copenhagen) can be booked for $409 on average our data indicates $1,397 when flying from Illinois to Copenhagen.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Illinois to Copenhagen (average of $523). Flying from Illinois to Copenhagen in June is currently the most expensive (average of $915). 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

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Kastrup

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Alternative routes for Illinois to Copenhagen

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 Copenhagen

Discover the top 10 airlines that operate flights from Illinois to Copenhagen. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$375Average$619FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$438Average$718FlexibilityNo cancel feeOn-time77%
FinnairCheapest$476Average$696FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$489Average$715FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$498Average$676FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$513Average$687FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$521Average$669FlexibilityNo cancel feeOn-time67%
SWISSCheapest$554Average$851FlexibilityNo cancel feeOn-time79%
DeltaCheapest$588Average$730FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$635Average$763FlexibilityNo cancel feeOn-time75%

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