How many flights depart from Denmark to Illinois on average per week?

As of August 2025, 12 flights take off from Denmark and land in Illinois each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

How many flights depart from Denmark to Illinois on average per day?

As of August 2025, 1 flights take off from Denmark and land in Illinois each day. The most common flight departure time for this route is 1:00PM, with 100% of daily flights taking off in the afternoon.

What airlines fly to Illinois?

Scandinavian Airlines, Lufthansa and United Airlines are the top three most popular airlines that fly to Illinois from Denmark according to our data. Scandinavian Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How long is the flight from Denmark to Illinois?

The flight from Denmark to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Copenhagen (a popular airport in Denmark) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 9h 15m on average. If you fly from Aalborg (another popular airport in Denmark) to Chicago O'Hare Intl Airport, then the average flight time is 10h 50m.

What is the cheapest airline that flies from Denmark to Illinois?

TAP AIR PORTUGAL, Air Serbia, and Lufthansa are the most popular carriers operating from Denmark to Illinois

When did momondo last update prices for flights from Denmark to Illinois?

Prices for flights from Denmark to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Denmark to Illinois?

As of August 2025, there are 5 operators available to choose from for flights from Denmark to Illinois.

How old do you have to be to fly from Denmark to Illinois?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Denmark to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$360 Cheap Flights from Denmark to Illinois in 2025

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Find the cheapest flights from Denmark to Illinois

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Denmark to Illinois

4:45 pm - 9:15 pmCPH-ORD

11h 30m1 stop

10:15 pm - 6:20 amORD-CPH

25h 05m1 stop

$442Icelandair

Find Deal

Fri, Aug 22 - Thu, Sep 4

2:25 pm - 8:05 pmCPH-ORD

12h 40m1 stop

6:50 pm - 2:00 pmORD-CPH

12h 10m1 stop

$454

Find Deal

Thu, Nov 13 - Sat, Nov 22

2:25 pm - 3:29 pmCPH-STL

32h 04m2 stops

4:05 pm - 9:15 amSTL-CPH

34h 10m2 stops

$456Air Canada

Find Deal

Thu, Nov 6 - Sat, Nov 15

6:10 am - 11:00 amCPH-ORD

11h 50m1 stop

10:30 pm - 10:05 pmORD-CPH

16h 35m1 stop

$462Lufthansa

Find Deal

Fri, Aug 22 - Thu, Sep 4

2:55 pm - 7:55 pmBLL-ORD

12h 00m1 stop

4:00 pm - 10:15 amORD-BLL

11h 15m1 stop

$463Lufthansa

Find Deal

Tue, Sep 16 - Sat, Sep 27

9:35 am - 2:55 pmCPH-ORD

12h 20m1 stop

8:40 am - 7:10 amORD-CPH

15h 30m1 stop

$491United Airlines

Find Deal

Thu, Aug 21 - Tue, Aug 26

12:20 pm - 7:55 pmCPH-ORD

14h 35m1 stop

10:40 am - 7:30 amORD-CPH

13h 50m1 stop

$492United Airlines

Find Deal

Tue, Sep 9 - Tue, Sep 23

7:20 am - 2:50 pmCPH-ORD

14h 30m1 stop

10:35 pm - 9:30 amORD-CPH

27h 55m1 stop

$513British Airways

Find Deal

Tue, Sep 9 - Fri, Sep 26

6:20 am - 4:45 pmAAR-ORD

17h 25m1 stop

7:20 pm - 9:15 amORD-AAR

30h 55m1 stop

$600Scandinavian Airlines

Find Deal

Wed, Dec 3 - Sun, Dec 7

6:20 am - 4:45 pmAAR-ORD

17h 25m1 stop

7:20 pm - 11:50 pmORD-AAR

21h 30m1 stop

$602Scandinavian Airlines

Find Deal

Wed, Dec 3 - Sun, Dec 7

Lufthansa flights from Denmark to Illinois

Our best Lufthansa deals on Denmark to Illinois flight tickets

Lufthansa

Aug 22

CPH6:10 amKastrup Copenhagen

11h 50m

1 stop

ORD11:00 amChicago O'Hare Intl

Sep 4

ORD10:30 pmChicago O'Hare Intl

16h 35m

1 stop

CPH10:05 pmKastrup Copenhagen

$462

Find similar

Lufthansa

Sep 16

BLL2:55 pmBillund

12h 00m

1 stop

ORD7:55 pmChicago O'Hare Intl

Sep 27

ORD4:00 pmChicago O'Hare Intl

11h 15m

1 stop

BLL10:15 amBillund

$463

Find similar

Lufthansa

Sep 17

BLL6:00 amBillund

13h 55m

1 stop

ORD12:55 pmChicago O'Hare Intl

Sep 28

ORD4:00 pmChicago O'Hare Intl

11h 05m

1 stop

BLL10:05 amBillund

$464

Find similar

Air France flights from Denmark to Illinois

Our best Air France deals on Denmark to Illinois flight tickets

Air France

Aug 22

CPH12:20 pmKastrup Copenhagen

12h 17m

1 stop

MDW5:37 pmChicago Midway

Sep 4

MDW1:43 pmChicago Midway

13h 12m

1 stop

CPH9:55 amKastrup Copenhagen

$499

Find similar

Air France

Sep 16

BLL6:00 amBillund

15h 10m

1 stop

ORD2:10 pmChicago O'Hare Intl

Sep 27

ORD5:15 pmChicago O'Hare Intl

13h 15m

2 stops

BLL1:30 pmBillund

$505

Find similar

Air France

Aug 22

CPH12:20 pmKastrup Copenhagen

12h 17m

1 stop

MDW5:37 pmChicago Midway

Sep 4

MDW1:43 pmChicago Midway

13h 12m

1 stop

CPH9:55 amKastrup Copenhagen

$548

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Fri 8/22

4:45 pm-9:15 pm

1 stop11h 30m

Chicago O'Hare Intl

Thu 9/4

10:15 pm-6:20 am

1 stop25h 05m

$442

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Thu 11/13

2:25 pm-8:05 pm

1 stop12h 40m

Chicago O'Hare Intl

Sat 11/22

6:50 pm-2:00 pm

1 stop12h 10m

$454

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 11/6

2:25 pm-3:29 pm

2 stops32h 04m

Lambert-St Louis

Sat 11/15

4:05 pm-9:15 am

2 stops34h 10m

$456

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Fri 8/22

6:10 am-11:00 am

1 stop11h 50m

Chicago O'Hare Intl

Thu 9/4

10:30 pm-10:05 pm

1 stop16h 35m

$462

BillundChicago

BLL - ORD

BLLORD

Billund

Tue 9/16

2:55 pm-7:55 pm

1 stop12h 00m

Chicago O'Hare Intl

Sat 9/27

4:00 pm-10:15 am

1 stop11h 15m

$463

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Thu 8/21

9:35 am-2:55 pm

1 stop12h 20m

Chicago O'Hare Intl

Tue 8/26

8:40 am-7:10 am

1 stop15h 30m

$491

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Tue 9/9

12:20 pm-7:55 pm

1 stop14h 35m

Chicago O'Hare Intl

Tue 9/23

10:40 am-7:30 am

1 stop13h 50m

$492

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Tue 9/9

7:20 am-2:50 pm

1 stop14h 30m

Chicago O'Hare Intl

Fri 9/26

10:35 pm-9:30 am

1 stop27h 55m

$513

AarhusChicago

AAR - ORD

AARORD

Aarhus

Wed 12/3

6:20 am-4:45 pm

1 stop17h 25m

Chicago O'Hare Intl

Sun 12/7

7:20 pm-9:15 am

1 stop30h 55m

$600

AarhusChicago

AAR - ORD

AARORD

Aarhus

Wed 12/3

6:20 am-4:45 pm

1 stop17h 25m

Chicago O'Hare Intl

Sun 12/7

7:20 pm-11:50 pm

1 stop21h 30m

$602

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denmark to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Denmark is in February. Flight prices, which tend to average around $482, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $528.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Denmark to Illinois is on a Wednesday when prices can be found for as low as $505. Flights from Denmark to Illinois on a Friday will generally be more expensive and average around $726. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Denmark to Illinois during this time can be as low as $532. Flights in the afternoon are often more expensive with an average ticket price of $746.

What is the cheapest Denmark to Illinois flight route?

Fly from Kastrup Copenhagen to Chicago O'Hare Intl for the best Denmark - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Denmark when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $618 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Denmark for as low as $540 on momondo.

What cabin class options are available on Denmark to Illinois flights?

There are 3 cabin classes available to choose from on Denmark to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Denmark to Illinois flights?

You could potentially save up to 2% on your flight if you consider stops on a Denmark to Illinois flight.

Cheap Denmark to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denmark to Illinois

Best Price Found	$360
Fastest flight time	9h 15m
Direct flights	Every day
Airports in Illinois	3 airports

The best one-way flight to Illinois from Denmark in the past 72 hours is $360. The best round-trip flight deal from Denmark to Illinois found on momondo in the last 72 hours is $442.

The fastest flight from Denmark to Illinois takes 9h 15m

Direct flights go from Denmark to Illinois every day.

There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Denmark to Illinois?
Prices for flights from Denmark to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Denmark to Illinois?
As of August 2025, there are 5 operators available to choose from for flights from Denmark to Illinois.
How old do you have to be to fly from Denmark to Illinois?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Denmark to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Denmark to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Denmark to Illinois is Airbus A330-300 (83.03% of total bookings). The next most popular plane model is Airbus A350-900 (16.97%).

Best airlines flying from Denmark to Illinois

Compare and see reviews for airlines that fly from Denmark to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $352	Free Cancellation	Rating 7.0 524 reviews	Search Icelandair flights
United Airlines	PriceFrom $460	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
Scandinavian Airlines	PriceFrom $515	Free Cancellation	Rating 7.4 1,462 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $530	Free Cancellation	Rating 6.8 7,287 reviews	Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Denmark to Illinois?

It is quick and easy to find Denmark to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Denmark to Illinois with flexible booking policies on momondo?

All flight searches from Denmark to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Denmark to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Denmark.

I’m not ready to book a flight from Denmark to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Denmark are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Illinois

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Cheap flights from Denmark to Illinois from $360

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denmark to Illinois departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Denmark to Illinois

Recent round-trip flight deals from Denmark to Illinois

Recent one-way flight deals from Denmark to Illinois

Recent last minute flight deals from Denmark to Illinois

Recent direct flight deals from Denmark to Illinois

Lufthansa flights from Denmark to Illinois

Our best Lufthansa deals on Denmark to Illinois flight tickets

Air France flights from Denmark to Illinois

Our best Air France deals on Denmark to Illinois flight tickets

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

See travel insights to Illinois from

How to get the cheapest flight ticket from Denmark to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Denmark to Illinois during this time can be as low as $532. Flights in the afternoon are often more expensive with an average ticket price of $746.

What is the cheapest Denmark to Illinois flight route?

Fly from Kastrup Copenhagen to Chicago O'Hare Intl for the best Denmark - Illinois flight prices

How far in advance should I book a flight to Illinois?

What cabin class options are available on Denmark to Illinois flights?

There are 3 cabin classes available to choose from on Denmark to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Denmark to Illinois flights?

You could potentially save up to 2% on your flight if you consider stops on a Denmark to Illinois flight.

What is the cheapest airline that flies from Denmark to Illinois?

TAP AIR PORTUGAL, Air Serbia, and Lufthansa are the most popular carriers operating from Denmark to Illinois

What airlines fly to Illinois?

How many flights depart from Denmark to Illinois on average per day?

As of August 2025, 1 flights take off from Denmark and land in Illinois each day. The most common flight departure time for this route is 1:00PM, with 100% of daily flights taking off in the afternoon.

How many flights depart from Denmark to Illinois on average per week?

As of August 2025, 12 flights take off from Denmark and land in Illinois each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

How long is the flight from Denmark to Illinois?

Cheap Denmark to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denmark to Illinois

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Denmark to Illinois?

How many operators does momondo search for flights from Denmark to Illinois?

How old do you have to be to fly from Denmark to Illinois?

What documentation or ID do you need to fly to Illinois?

What is the most popular plane model from Denmark to Illinois?

Best airlines flying from Denmark to Illinois

Compare and see reviews for airlines that fly from Denmark to Illinois with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Denmark to Illinois?

Can I find flights from Denmark to Illinois with flexible booking policies on momondo?

How can momondo help me find flights from Denmark to Illinois?

I’m not ready to book a flight from Denmark to Illinois right now. Can momondo alert me if prices change?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo