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$317+ Cheap flights from Copenhagen (CPH) 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — ORD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Copenhagen to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Copenhagen (CPH) 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 January 21, 2025.

Round-trip from

$405
(Ticket)

One-way from

$317
(Mytrip)

Good round-trip deal

$546 or less

Good one-way deal

$629 or less
From Kastrup Copenhagen to Illinois
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One-way flight from Kastrup Copenhagen to Illinois
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Price to beat on a round-trip flight from Kastrup Copenhagen to Illinois.
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Price to beat on a one-way flight from Kastrup Copenhagen to Illinois.
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Find flight deals from Copenhagen to Illinois

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

This Ticket 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/166:50 amCPH - ORD
1 stop16h 50mBritish Airways
Tue 4/19:15 pmORD - CPH
1 stop29h 35mBritish Airways
Deal found 1/21$405
This Ticket 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/166:50 amCPH - ORD
1 stop16h 50mMultiple Airlines
Tue 4/110:25 pmORD - CPH
2 stops17h 45mMultiple Airlines
Deal found 1/21$410
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/218:40 amCPH - ORD
1 stop16h 10mAmerican Airlines
Wed 4/307:15 pmORD - CPH
1 stop17h 50mAmerican Airlines
Deal found 1/21$425
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.
Mon 3/2412:45 pmCPH - ORD
1 stop13h 00mFinnair
Mon 3/315:55 pmORD - CPH
1 stop12h 40mFinnair
Deal found 1/21$427
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/286:50 amCPH - STL
2 stops39h 16mUnited Airlines
Wed 3/58:05 amSTL - CPH
2 stops22h 55mUnited Airlines
Deal found 1/20$433
This Flybillet 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 Flybillet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/26:50 amCPH - STL
1 stop14h 05mLufthansa
Sun 2/91:02 pmSTL - CPH
2 stops26h 48mLufthansa
Deal found 1/19$442
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:35 pmCPH - ORD
1 stop29h 40mIcelandair
Wed 1/76:30 pmORD - CPH
1 stop18h 20mIcelandair
Deal found 1/21$442
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/286:45 amCPH - STL
2 stops22h 18mBritish Airways
Wed 3/510:49 amSTL - CPH
2 stops17h 31mBritish Airways
Deal found 1/21$449
This LATAM Airlines 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/286:50 amCPH - STL
1 stop14h 05mMultiple Airlines
Wed 3/53:45 pmSTL - CPH
1 stop14h 45mMultiple Airlines
Deal found 1/21$453
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/246:00 amCPH - MDW
2 stops19h 11mDelta
Mon 3/102:55 pmMDW - CPH
2 stops16h 20mDelta
Deal found 1/20$468
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/219:40 amCPH - ORD
1 stop34h 05mUnited Airlines
Wed 4/301:28 pmORD - CPH
2 stops19h 57mUnited Airlines
Deal found 1/21$479
This Air Canada 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/166:55 amCPH - ORD
2 stops14h 56mAir Canada
Tue 4/2210:45 amORD - CPH
2 stops15h 10mAir Canada
Deal found 1/21$493

Find flights from Copenhagen to Illinois within your budget

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

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Mon 2/24

6:40 am-2:45 pm

1 stop15h 05m

Chicago O'Hare Intl

Mon 3/10

7:30 pm-5:25 pm

1 stop15h 55m

$405

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Mon 2/24

8:50 pm-5:20 pm

1 stop27h 30m

Chicago O'Hare Intl

Mon 3/10

7:30 pm-7:50 pm

1 stop18h 20m

$418

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Sun 3/16

6:50 am-5:40 pm

1 stop16h 50m

Chicago O'Hare Intl

Tue 4/1

5:55 pm-6:40 pm

2 stops17h 45m

$421

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Thu 3/6

3:15 pm-1:55 pm

1 stop29h 40m

Chicago O'Hare Intl

Sun 3/9

7:30 pm-2:20 pm

1 stop12h 50m

$426

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 2/28

6:50 am-3:06 pm

2 stops39h 16m

Lambert-St Louis

Wed 3/5

8:05 am-2:00 pm

2 stops22h 55m

$433

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Thu 3/6

8:40 am-7:24 pm

2 stops17h 44m

Chicago O'Hare Intl

Sun 3/9

7:30 pm-1:30 pm

1 stop12h 00m

$435

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Mon 2/24

7:00 am-7:37 pm

2 stops19h 37m

Chicago O'Hare Intl

Mon 3/10

8:30 pm-9:05 am

1 stop30h 35m

$441

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Sun 2/2

6:50 am-1:55 pm

1 stop14h 05m

Lambert-St Louis

Sun 2/9

1:02 pm-10:50 pm

2 stops26h 48m

$442

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 2/28

6:45 am-10:03 pm

2 stops22h 18m

Lambert-St Louis

Wed 3/5

10:49 am-11:20 am

2 stops17h 31m

$449

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 2/28

6:50 am-1:55 pm

1 stop14h 05m

Lambert-St Louis

Wed 3/5

3:45 pm-1:30 pm

1 stop14h 45m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 36 results
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Best time to book a flight from Copenhagen to Illinois

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

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

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

Currently, August is the cheapest month in which you can book a flight from Copenhagen to Illinois (average of $245). Flying from Copenhagen to Illinois in March is currently the most expensive (average of $320). 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 CPH to IL?

Find hourly flight availability from Copenhagen 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 January 21, 2025.

When flying from Copenhagen 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 January 21, 2025.
Get a feel of what it's like to fly with Lufthansa, United Airlines and British Airways from Copenhagen to Illinois by reading reviews from past customers. 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

Boarding

8.2

Entertainment

7.9

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

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,117 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

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

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

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

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

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 Copenhagen to Illinois. 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 from for flights from Copenhagen to Illinois?

    Kastrup Copenhagen (CPH) is the airport you will fly out of if you book a flight from Copenhagen to Illinois. It is only a 5.0 mi journey to Kastrup Copenhagen (CPH) from Copenhagen’s city center.

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

    The cheapest airlines for a one-way flight from Copenhagen to Illinois are Icelandair ($387), Finnair ($412), and Air Serbia ($421).

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

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

  • What are the cheapest flights from Copenhagen to Illinois?

    The cheapest flight price from Copenhagen to Illinois is $387. On average you can expect to pay $623. The most popular route, (Kastrup Copenhagen - Chicago O'Hare Intl), can usually be booked for $364.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Copenhagen to Illinois (average of $245). Flying from Copenhagen to Illinois in March is currently the most expensive (average of $320). 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.

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Alternative routes for Copenhagen to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Copenhagen to Illinois

Discover the top 6 airlines that operate flights from Copenhagen 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$352Average$449FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$401Average$505FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$405Average$510FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$455Average$660FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$460Average$595FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$499Average$610FlexibilityNo cancel feeOn-time77%
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