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$315+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CPH
jul. 30 — ago. 61
mié. 7/30
mié. 8/6
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 julio 25, 2025.

Round-trip from

$542
(United Airlines)

One-way from

$315
(Booking.com)

Popular in

June

Cheapest in

February

Average price

$764

Good round-trip deal

$491 or less

Good one-way deal

$384 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. 19% potential increase in price ($145 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 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 julio 25, 2025.

This oojo deal was found by Cheapflights users on 7/22. 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. 9/87:15 pmORD - CPH
Nonstop8h 30mScandinavian Airlines
lun. 9/222:20 pmCPH - ORD
1 stop28h 56mScandinavian Airlines
Deal found 7/22$542
This Mytrip deal was found by Cheapflights users on 7/24. 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.
mar. 8/52:20 pmORD - CPH
1 stop16h 55mMultiple Airlines
vie. 8/1512:25 pmCPH - ORD
1 stop14h 51mMultiple Airlines
Deal found 7/24$543
This Air Canada deal was found by Cheapflights users on 7/22. 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. 8/127:15 amORD - CPH
2 stops21h 20mAir Canada
jue. 8/216:50 amCPH - ORD
2 stops18h 51mAir Canada
Deal found 7/22$544
This SWISS deal was found by Cheapflights users on 7/23. 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.
mar. 8/127:05 pmORD - CPH
2 stops34h 10mSWISS
mié. 8/206:55 pmCPH - ORD
1 stop24h 15mSWISS
Deal found 7/23$545
This United Airlines deal was found by Cheapflights users on 7/23. 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.
mié. 9/1012:00 pmORD - CPH
2 stops15h 50mUnited Airlines
mié. 9/1712:45 pmCPH - ORD
1 stop14h 26mUnited Airlines
Deal found 7/23$547
This Ovago deal was found by Cheapflights users on 7/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/297:15 pmORD - CPH
1 stop16h 35mBritish Airways
mar. 9/29:45 pmCPH - ORD
1 stop21h 05mBritish Airways
Deal found 7/22$548
This Icelandair deal was found by Cheapflights users on 7/22. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/187:25 pmORD - CPH
1 stop10h 30mIcelandair
sáb. 8/232:05 pmCPH - ORD
1 stop11h 10mIcelandair
Deal found 7/22$549
This Austrian Airlines deal was found by Cheapflights users on 7/23. 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.
vie. 11/71:00 pmORD - CPH
2 stops26h 40mAustrian Airlines
dom. 11/165:35 pmCPH - ORD
1 stop27h 25mAustrian Airlines
Deal found 7/23$565
This American Airlines deal was found by Cheapflights users on 7/22. 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.
sáb. 8/233:35 pmORD - CPH
2 stops12h 40mAmerican Airlines
jue. 8/2812:25 pmCPH - ORD
1 stop12h 25mAmerican Airlines
Deal found 7/22$568
This Virgin Atlantic deal was found by Cheapflights users on 7/23. 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.
mié. 9/106:00 amMDW - CPH
2 stops17h 30mVirgin Atlantic
mié. 9/179:00 amCPH - MDW
2 stops19h 36mVirgin Atlantic
Deal found 7/23$570
This Lufthansa deal was found by Cheapflights users on 7/22. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/139:40 pmORD - CPH
1 stop14h 05mLufthansa
mar. 8/268:50 amCPH - ORD
2 stops18h 05mLufthansa
Deal found 7/22$578
This Delta deal was found by Cheapflights users on 7/24. 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. 9/106:00 amMDW - CPH
2 stops17h 30mDelta
mié. 9/249:00 amCPH - MDW
2 stops19h 36mDelta
Deal found 7/24$590

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 julio 25, 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

lun. 9/8

7:15 pm-10:45 am

Nonstop8h 30m

Kastrup Copenhagen

lun. 9/22

2:20 pm-12:16 pm

1 stop28h 56m

$542

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

mar. 8/5

2:20 pm-2:15 pm

1 stop16h 55m

Kastrup Copenhagen

vie. 8/15

12:25 pm-8:16 pm

1 stop14h 51m

$543

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

mar. 8/12

7:15 am-11:35 am

2 stops21h 20m

Kastrup Copenhagen

mar. 8/26

6:50 am-8:16 pm

2 stops20h 26m

$544

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

mar. 8/12

7:05 pm-12:15 pm

2 stops34h 10m

Kastrup Copenhagen

mié. 8/20

6:55 pm-12:10 pm

1 stop24h 15m

$545

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

mié. 9/10

12:00 pm-10:50 am

2 stops15h 50m

Kastrup Copenhagen

mié. 9/17

12:45 pm-8:11 pm

1 stop14h 26m

$547

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

vie. 8/29

7:15 pm-6:50 pm

1 stop16h 35m

Kastrup Copenhagen

mar. 9/2

9:45 pm-11:50 am

1 stop21h 05m

$548

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

lun. 8/18

7:25 pm-12:55 pm

1 stop10h 30m

Kastrup Copenhagen

sáb. 8/23

2:05 pm-6:15 pm

1 stop11h 10m

$549

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

vie. 11/7

1:00 pm-10:40 pm

2 stops26h 40m

Kastrup Copenhagen

dom. 11/16

5:35 pm-2:00 pm

1 stop27h 25m

$565

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

sáb. 8/23

3:35 pm-11:15 am

2 stops12h 40m

Kastrup Copenhagen

jue. 8/28

12:25 pm-5:50 pm

1 stop12h 25m

$568

ChicagoCopenhagen

MDW - CPH

MDWCPH

Chicago Midway

mié. 9/10

6:00 am-6:30 am

2 stops17h 30m

Kastrup Copenhagen

mié. 9/17

9:00 am-9:36 pm

2 stops19h 36m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 46 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 $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 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 julio 25, 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 julio 25, 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
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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
7,967 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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
1,375 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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
1,316 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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
1,462 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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!
SWISS
7.5
Good
1,676 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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?

    $315 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Icelandair and United Airlines, with prices starting from $316 and $319, 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 $368. While the most popular route (Chicago O'Hare Intl - Kastrup Copenhagen) can be booked for $417 on average our data indicates $1,406 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 $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

Traveling to a place near Copenhagen?

Book flights to Copenhagen 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 julio 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$379Average$624FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$445Average$738FlexibilityNo cancel feeOn-time77%
FinnairCheapest$476Average$696FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$489Average$705FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$498Average$678FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$513Average$687FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$521Average$672FlexibilityNo cancel feeOn-time67%
SWISSCheapest$554Average$829FlexibilityNo cancel feeOn-time79%
DeltaCheapest$588Average$746FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$635Average$763FlexibilityNo cancel feeOn-time75%

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