HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$314+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — ORD
févr. 28 — mars 71
sam. 2/28
sam. 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denmark to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 janvier 29, 2026.

This Travelis deal was found by Cheapflights users on 1/28. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/185:40 pm
CPH
-
ORD
1 stop29h 20m
TAP AIR PORTUGAL
sam. 5/26:15 pm
ORD
-
CPH
1 stop34h 40m
TAP AIR PORTUGAL
Deal found 1/28$452
This ResecentrumGruppen deal was found by Cheapflights users on 1/29. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 2/1212:55 pm
CPH
-
ORD
1 stop11h 25m
Icelandair
mer. 2/256:30 pm
ORD
-
CPH
1 stop18h 20m
Icelandair
Deal found 1/29$466
This ResecentrumGruppen deal was found by Cheapflights users on 1/27. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/1110:35 pm
CPH
-
ORD
1 stop26h 40m
Icelandair
dim. 5/2410:25 pm
ORD
-
CPH
1 stop10h 30m
Icelandair
Deal found 1/27$476
This FlightHub deal was found by Cheapflights users on 1/27. 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.
jeu. 4/165:40 pm
CPH
-
ORD
1 stop29h 20m
TAP AIR PORTUGAL
dim. 4/196:00 pm
ORD
-
CPH
1 stop15h 50m
TAP AIR PORTUGAL
Deal found 1/27$478
This Sembo deal was found by Cheapflights users on 1/28. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 2/86:15 am
CPH
-
ORD
1 stop18h 05m
Icelandair
dim. 2/226:30 pm
ORD
-
CPH
1 stop10h 15m
Icelandair
Deal found 1/28$481
This Flightnetwork deal was found by Cheapflights users on 1/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/94:55 pm
CPH
-
ORD
1 stop11h 30m
Icelandair
sam. 10/177:25 pm
ORD
-
CPH
1 stop10h 30m
Icelandair
Deal found 1/28$486
This FlightHub deal was found by Cheapflights users on 1/27. 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.
jeu. 2/266:15 am
CPH
-
ORD
1 stop18h 05m
Icelandair
lun. 3/26:30 pm
ORD
-
CPH
1 stop10h 15m
Icelandair
Deal found 1/27$488
This Finnair deal was found by Cheapflights users on 1/27. 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.
ven. 8/77:25 am
CPH
-
ORD
1 stop14h 35m
Multiple Airlines
lun. 8/178:45 pm
ORD
-
CPH
1 stop13h 05m
Multiple Airlines
Deal found 1/27$489
This FlightHub deal was found by Cheapflights users on 1/28. 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.
mer. 3/412:55 pm
CPH
-
ORD
1 stop11h 25m
Icelandair
lun. 3/97:30 pm
ORD
-
CPH
1 stop27h 50m
Icelandair
Deal found 1/28$490
This Ticket deal was found by Cheapflights users on 1/27. 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.
mer. 3/49:55 am
CPH
-
ORD
1 stop11h 25m
KLM
mer. 3/115:25 pm
ORD
-
CPH
1 stop11h 50m
KLM
Deal found 1/27$496
This Flysmarter deal was found by Cheapflights users on 1/28. 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.
jeu. 2/261:00 pm
BLL
-
ORD
1 stop12h 45m
British Airways
mar. 3/35:10 pm
ORD
-
BLL
1 stop12h 20m
British Airways
Deal found 1/28$509
This British Airways deal was found by Cheapflights users on 1/28. 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.
sam. 2/281:05 pm
BLL
-
ORD
1 stop12h 40m
British Airways
mer. 3/48:45 pm
ORD
-
BLL
2 stops40h 15m
British Airways
Deal found 1/28$520

Find flight deals from Denmark to Illinois

Keep the following information in mind while searching for Denmark to Illinois flight deals. Data was last updated janvier 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$452
(Travelis)

One-way from

$314
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$603

Good round-trip deal

$470 or less

Good one-way deal

$773 or less
Provider with most accurate pricing for Kastrup Copenhagen-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kastrup Copenhagen-Chicago (CHI) flights.
Search Deals
From Denmark to Illinois
Search Deals
One-way flight from Denmark to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Denmark to Illinois.
Search Deals
Price to beat on a one-way flight from Denmark to Illinois.
Search Deals

Cheapflights Fare Finder

 
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 janvier 29, 2026.
Use the filters below to find and compare flights from Denmark to Illinois that are best for you.

Fly from

Denmark

Fly to

Illinois

Route

Depart

Return

Price

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

jeu. 2/12

8:50 pm-5:20 pm

1 stop27h 30m

Chicago O'Hare Intl

mer. 2/25

6:30 pm-7:50 pm

1 stop18h 20m

$474

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

mer. 3/4

12:55 pm-5:20 pm

1 stop11h 25m

Chicago O'Hare Intl

lun. 3/9

7:30 pm-5:20 am

1 stop27h 50m

$490

BillundChicago

BLL - ORD

BLLORD

Billund

jeu. 2/26

1:00 pm-6:45 pm

1 stop12h 45m

Chicago O'Hare Intl

mar. 3/3

5:10 pm-12:30 pm

1 stop12h 20m

$509

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

sam. 2/14

9:55 am-2:20 pm

1 stop11h 25m

Chicago O'Hare Intl

mer. 2/18

4:25 pm-11:15 am

1 stop11h 50m

$512

BillundChicago

BLL - ORD

BLLORD

Billund

sam. 2/28

1:05 pm-6:45 pm

1 stop12h 40m

Chicago O'Hare Intl

mer. 3/4

8:45 pm-8:00 pm

2 stops40h 15m

$518

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

jeu. 3/19

10:10 am-4:20 pm

1 stop12h 10m

Chicago O'Hare Intl

sam. 4/4

4:05 pm-11:40 am

1 stop12h 35m

$523

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

ven. 4/17

4:55 pm-9:25 pm

1 stop11h 30m

Chicago O'Hare Intl

mar. 4/21

7:25 pm-9:45 pm

1 stop19h 20m

$524

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

mer. 4/15

4:20 pm-1:20 pm

2 stops28h 00m

Chicago O'Hare Intl

mar. 4/21

6:00 pm-3:35 pm

1 stop14h 35m

$524

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

mer. 4/15

4:20 pm-1:20 pm

2 stops28h 00m

Chicago O'Hare Intl

dim. 4/19

4:16 pm-5:20 pm

2 stops18h 04m

$524

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

mar. 4/21

2:00 pm-6:15 pm

1 stop11h 15m

Chicago O'Hare Intl

ven. 4/24

10:25 pm-3:55 pm

1 stop10h 30m

$526

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 53 results
1
2
3
...
6

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.

Cheapflights Insights

Everything you need to know about your flight from Denmark to Illinois

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

Currently, March is the cheapest month in which you can book a flight from Denmark to Illinois (average of $382). Flying from Denmark to Illinois in July is currently the most expensive (average of $543). 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 janvier 29, 2026.

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.

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 janvier 29, 2026.
See what other customers who have flown with United Airlines, Scandinavian Airlines, and American Airlines from Denmark to Illinois have to say. 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.
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Scandinavian Airlines
7.3
Good
1,674 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
American Airlines
7.2
Good
11,206 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Lufthansa
6.8
Okay
7,756 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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.

  • How long is the flight from Denmark to Illinois?

    Departing from Denmark to Illinois will take you 11h 25m. There are 4256 mi between Denmark and Illinois. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 American Airlines ($323), British Airways ($355), and Icelandair ($428).

  • 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, March is the cheapest month in which you can book a flight from Denmark to Illinois (average of $382). Flying from Denmark to Illinois in July is currently the most expensive (average of $543). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Denmark to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to John F Kennedy Intl flights
Charles de Gaulle to Newark flights
Orly to Newark flights
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Frankfurt to John F Kennedy Intl flights
Charles de Gaulle to LaGuardia flights
Frankfurt to Newark flights
Orly to John F Kennedy Intl flights
Charles de Gaulle to Los Angeles flights
Charles de Gaulle to Miami flights
Heathrow to LaGuardia flights
Bruxelles-National to Newark flights
London City to John F Kennedy Intl flights
Bruxelles-National to John F Kennedy Intl flights
Gatwick to Newark flights
Madrid to Newark flights
Frederic Chopin to John F Kennedy Intl flights
Malpensa to Newark flights
Frankfurt to LaGuardia flights
Frankfurt to Miami flights
Gatwick to John F Kennedy Intl flights
Malpensa to John F Kennedy Intl flights
Frankfurt to Los Angeles flights
Gatwick to LaGuardia flights
Amsterdam to John F Kennedy Intl flights
Amsterdam to Newark flights
Beauvais-Tille to Newark flights
Heathrow to Los Angeles flights
Orly to Los Angeles flights
Leonardo da Vinci/Fiumicino to Newark flights
Vienna to Newark flights
Heathrow to Miami flights
Stansted to John F Kennedy Intl flights
Geneva to Newark flights
Barcelona-El Prat to Newark flights
Barcelona-El Prat to John F Kennedy Intl flights
Zurich to John F Kennedy Intl flights
Leonardo da Vinci/Fiumicino to John F Kennedy Intl flights
Frankfurt to San Francisco flights
Madrid to John F Kennedy Intl flights
Charles de Gaulle to Dallas/Fort Worth flights
Madrid to LaGuardia flights
Vienna to John F Kennedy Intl flights
Bruxelles-National to LaGuardia flights
Zurich to Newark flights
Athens to Newark flights
Frederic Chopin to Newark flights

Top 2 airlines flying from Denmark to Illinois

Discover the top 2 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 janvier 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$530Average$755FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$533Average$825FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.