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$322+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CPH
jun. 23 — jun. 301
lun. 6/23
lun. 6/30
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 junio 18, 2025.

Round-trip from

$581
(FlightHub)

One-way from

$322
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$843

Good round-trip deal

$478 or less

Good one-way deal

$399 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 ($136 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 18, 2025.

This oojo deal was found by Cheapflights users on 6/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/2410:15 pmORD - CPH
1 stop25h 05mIcelandair
mar. 7/297:20 amCPH - ORD
1 stop17h 55mIcelandair
Deal found 6/16$581
This Air Canada deal was found by Cheapflights users on 6/17. 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.
mar. 10/78:40 amORD - CPH
2 stops17h 15mAir Canada
vie. 10/176:10 amCPH - ORD
2 stops21h 01mAir Canada
Deal found 6/17$583
This British Airways deal was found by Cheapflights users on 6/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/117:10 pmORD - CPH
1 stop21h 25mBritish Airways
vie. 10/177:25 amCPH - ORD
1 stop15h 30mBritish Airways
Deal found 6/18$584
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/223:35 pmORD - CPH
1 stop32h 35mUnited Airlines
lun. 9/83:00 pmCPH - ORD
2 stops30h 55mUnited Airlines
Deal found 6/16$585
This oojo deal was found by Cheapflights users on 6/18. 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.
lun. 12/157:30 amORD - CPH
2 stops16h 30mScandinavian Airlines
lun. 12/292:30 pmCPH - ORD
Nonstop9h 15mScandinavian Airlines
Deal found 6/18$588
This lastminute.com deal was found by Cheapflights users on 6/16. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/107:11 pmSTL - CPH
2 stops28h 19mVirgin Atlantic
mar. 8/269:00 amCPH - STL
2 stops17h 07mVirgin Atlantic
Deal found 6/16$595
This Scandinavian Airlines deal was found by Cheapflights users on 6/18. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/2611:45 amORD - CPH
1 stop13h 20mMultiple Airlines
jue. 11/62:30 pmCPH - ORD
Nonstop9h 15mMultiple Airlines
Deal found 6/18$598
This Delta deal was found by Cheapflights users on 6/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/172:10 pmORD - CPH
2 stops16h 00mDelta
mar. 9/239:00 amCPH - ORD
1 stop15h 36mDelta
Deal found 6/17$599
This Flysmarter deal was found by Cheapflights users on 6/18. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/111:15 pmSTL - CPH
1 stop15h 00mBritish Airways
mar. 8/262:00 pmCPH - STL
1 stop13h 58mBritish Airways
Deal found 6/18$613
This Delta deal was found by Cheapflights users on 6/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/15:59 pmMDW - CPH
2 stops16h 06mDelta
vie. 10/1712:20 pmCPH - MDW
1 stop12h 47mDelta
Deal found 6/17$614
This Ticket deal was found by Cheapflights users on 6/18. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/116:00 pmSTL - CPH
2 stops16h 05mAir France
mar. 8/269:00 amCPH - STL
2 stops17h 01mAir France
Deal found 6/18$614
This Austrian Airlines deal was found by Cheapflights users on 6/16. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/1212:55 pmORD - CPH
2 stops26h 45mAustrian Airlines
sáb. 10/188:00 pmCPH - ORD
1 stop24h 20mAustrian Airlines
Deal found 6/16$616

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 junio 18, 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

jue. 7/24

10:15 pm-6:20 am

1 stop25h 05m

Kastrup Copenhagen

mar. 7/29

7:20 am-6:15 pm

1 stop17h 55m

$581

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

mar. 10/7

8:40 am-8:55 am

2 stops17h 15m

Kastrup Copenhagen

vie. 10/17

6:10 am-8:11 pm

2 stops21h 01m

$583

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

sáb. 10/11

7:10 pm-11:35 pm

1 stop21h 25m

Kastrup Copenhagen

vie. 10/17

7:25 am-3:55 pm

1 stop15h 30m

$584

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

vie. 8/22

3:35 pm-7:10 am

1 stop32h 35m

Kastrup Copenhagen

lun. 9/8

3:00 pm-2:55 pm

2 stops30h 55m

$585

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

lun. 12/15

7:30 am-7:00 am

2 stops16h 30m

Kastrup Copenhagen

lun. 12/29

2:30 pm-4:45 pm

Nonstop9h 15m

$588

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

dom. 8/10

7:11 pm-6:30 am

2 stops28h 19m

Kastrup Copenhagen

mar. 8/26

9:00 am-7:07 pm

2 stops17h 07m

$595

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

dom. 10/26

11:45 am-7:05 am

1 stop13h 20m

Kastrup Copenhagen

jue. 11/6

2:30 pm-4:45 pm

Nonstop9h 15m

$598

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

mié. 9/17

2:10 pm-1:10 pm

2 stops16h 00m

Kastrup Copenhagen

jue. 9/25

9:00 am-5:36 pm

1 stop15h 36m

$599

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

lun. 8/11

1:15 pm-11:15 am

1 stop15h 00m

Kastrup Copenhagen

mar. 8/26

2:00 pm-8:58 pm

1 stop13h 58m

$613

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

lun. 8/11

6:00 pm-5:05 pm

2 stops16h 05m

Kastrup Copenhagen

mar. 8/26

9:00 am-7:01 pm

2 stops17h 01m

$614

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 50 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 $919). 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 junio 18, 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.

Rainfall in Copenhagen by month

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

In terms of precipitation, rainfall in Copenhagen 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 Copenhagen when rainfall is around 0.8 in.

Temperature in Copenhagen by month

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

If weather is an important factor for your trip to Copenhagen, 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 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 junio 18, 2025.
Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Illinois to Copenhagen. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

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
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

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
1,364 reviews
Delta
8.0
Very good
7,964 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

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!
Austrian Airlines
7.6
Good
804 reviews
Delta
8.0
Very good
7,964 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

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
1,292 reviews
Delta
8.0
Very good
7,964 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

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
1,467 reviews
Delta
8.0
Very good
7,964 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

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?

    $325 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Icelandair and TAP AIR PORTUGAL, with prices starting from $326 and $366, 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 $371. While the most popular route (Chicago O'Hare Intl - Kastrup Copenhagen) can be booked for $380 on average our data indicates $871 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 $919). 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 junio 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$375Average$614FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$436Average$695FlexibilityNo cancel feeOn-time77%
FinnairCheapest$476Average$696FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$498Average$668FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$511Average$684FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$521Average$670FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$530Average$731FlexibilityNo cancel feeOn-time71%
SWISSCheapest$554Average$851FlexibilityNo cancel feeOn-time79%
DeltaCheapest$588Average$730FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$635Average$763FlexibilityNo cancel feeOn-time75%

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