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

British Airways, KLM, and Scandinavian Airlines are the most popular carriers operating from Illinois to Denmark

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

As of March 2026, there are 7 flights per week flying from Illinois to Denmark. The most common day of the week flights depart is Fri, with 43% of flights taking off on this day.

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

As of March 2026, 1 flights take off from Illinois and land in Denmark each day. The most common flight departure time for this route is 8:00PM, with 100% of daily flights taking off in the evening.

What airlines fly to Denmark?

Scandinavian Airlines, Icelandair and United Airlines are the top three most popular airlines that fly to Denmark from Illinois according to our data. Scandinavian Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Denmark. Keep in mind that there are 10 different airlines that fly to Denmark on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Illinois to Denmark were last updated today.

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

As of March 2026, there are 10 operators available to choose from for flights from Illinois to Denmark.

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

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 Illinois to Denmark.

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

The required travel and health documents for your Denmark trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denmark. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$248 Cheap Flights from Illinois to Denmark in 2026

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Find the cheapest flights from Illinois to Denmark

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:25 pm - 12:55 pm

ORD

CPH

10h 30m

1 stop

2:00 pm - 6:15 pm

CPH

ORD

11h 15m

1 stop

$500Icelandair

Mon, Apr 27 - Wed, May 13

7:25 pm - 9:45 pm

ORD

CPH

19h 20m

1 stop

2:00 pm - 6:15 pm

CPH

ORD

11h 15m

1 stop

$507Icelandair

Mon, Apr 20 - Mon, Apr 27

11:25 am - 6:05 pm

ORD

BLL

23h 40m

1 stop

7:00 pm - 9:40 am

BLL

ORD

21h 40m

1 stop

$615Turkish Airlines

Thu, Apr 16 - Fri, May 1

8:10 pm - 9:15 am

ORD

BLL

30h 05m

1 stop

7:00 pm - 9:40 am

BLL

ORD

21h 40m

1 stop

$681Turkish Airlines

Fri, May 8 - Fri, May 15

5:10 pm - 11:20 am

ORD

BLL

11h 10m

1 stop

6:00 am - 2:30 pm

BLL

ORD

15h 30m

1 stop

$695Delta

Wed, May 6 - Wed, May 13

12:14 pm - 11:20 am

ORD

BLL

16h 06m

2 stops

6:00 am - 2:30 pm

BLL

ORD

15h 30m

1 stop

$699Delta

Wed, May 6 - Wed, May 13

7:00 am - 1:50 pm

ORD

AAL

23h 50m

2 stops

5:40 pm - 4:10 pm

AAL

ORD

29h 30m

1 stop

$707Scandinavian Airlines

Mon, May 11 - Mon, May 18

11:25 am - 6:05 pm

ORD

BLL

23h 40m

1 stop

3:40 pm - 9:40 am

BLL

ORD

25h 00m

2 stops

$716Multiple Airlines

Thu, Apr 16 - Fri, May 1

10:24 am - 12:10 pm

ORD

AAL

18h 46m

2 stops

9:10 pm - 4:10 pm

AAL

ORD

26h 00m

1 stop

$727Scandinavian Airlines

Sun, May 10 - Sun, May 17

1:24 pm - 11:05 am

MDW

CPH

14h 41m

2 stops

9:00 am - 6:33 pm

CPH

MDW

16h 33m

2 stops

$728Multiple Airlines

Sun, May 3 - Fri, May 8

Icelandair flights from Illinois to Denmark

Our best Icelandair deals on Illinois to Denmark flight tickets

Icelandair

Apr 27

ORD7:25 pmChicago O'Hare Intl

10h 30m

1 stop

CPH12:55 pmKastrup Copenhagen

May 13

CPH2:00 pmKastrup Copenhagen

11h 15m

1 stop

ORD6:15 pmChicago O'Hare Intl

$500

Icelandair

Apr 20

ORD7:25 pmChicago O'Hare Intl

19h 20m

1 stop

CPH9:45 pmKastrup Copenhagen

Apr 27

CPH2:00 pmKastrup Copenhagen

11h 15m

1 stop

ORD6:15 pmChicago O'Hare Intl

$507

Icelandair

Apr 19

ORD7:25 pmChicago O'Hare Intl

13h 30m

1 stop

CPH3:55 pmKastrup Copenhagen

Apr 28

CPH4:55 pmKastrup Copenhagen

32h 20m

1 stop

ORD6:15 pmChicago O'Hare Intl

$511

KLM flights from Illinois to Denmark

Our best KLM deals on Illinois to Denmark flight tickets

KLM

May 7

ORD4:20 pmChicago O'Hare Intl

14h 20m

1 stop

AAL1:40 pmAalborg

May 14

AAL6:15 pmAalborg

27h 00m

1 stop

ORD2:15 pmChicago O'Hare Intl

$773

KLM

May 7

ORD4:20 pmChicago O'Hare Intl

10h 40m

1 stop

AAL10:00 amAalborg

May 14

AAL10:30 amAalborg

16h 44m

2 stops

ORD8:14 pmChicago O'Hare Intl

$782

KLM

Aug 31

STL4:13 pmLambert-St Louis

31h 32m

1 stop

CPH6:45 amKastrup Copenhagen

Sep 15

CPH9:00 amKastrup Copenhagen

14h 55m

1 stop

STL4:55 pmLambert-St Louis

$784

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Mon 4/27

7:25 pm-12:55 pm

1 stop10h 30m

Kastrup Copenhagen

Wed 5/13

2:00 pm-6:15 pm

1 stop11h 15m

$500

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Mon 4/20

7:25 pm-9:45 pm

1 stop19h 20m

Kastrup Copenhagen

Mon 4/27

2:00 pm-6:15 pm

1 stop11h 15m

$507

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Thu 4/16

11:25 am-6:05 pm

1 stop23h 40m

Billund

Fri 5/1

7:00 pm-9:40 am

1 stop21h 40m

$615

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Fri 5/8

8:10 pm-9:15 am

1 stop30h 05m

Billund

Fri 5/15

7:00 pm-9:40 am

1 stop21h 40m

$681

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Wed 5/6

5:10 pm-11:20 am

1 stop11h 10m

Billund

Wed 5/13

6:00 am-2:30 pm

1 stop15h 30m

$695

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Wed 5/6

12:14 pm-11:20 am

2 stops16h 06m

Billund

Wed 5/13

6:00 am-2:30 pm

1 stop15h 30m

$699

ChicagoAalborg

ORD - AAL

ORDAAL

Chicago O'Hare Intl

Mon 5/11

7:00 am-1:50 pm

2 stops23h 50m

Aalborg

Mon 5/18

5:40 pm-4:10 pm

1 stop29h 30m

$707

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Thu 4/16

11:25 am-6:05 pm

1 stop23h 40m

Billund

Fri 5/1

3:40 pm-9:40 am

2 stops25h 00m

$716

ChicagoAalborg

ORD - AAL

ORDAAL

Chicago O'Hare Intl

Sun 5/10

10:24 am-12:10 pm

2 stops18h 46m

Aalborg

Sun 5/17

9:10 pm-4:10 pm

1 stop26h 00m

$727

ChicagoCopenhagen

MDW - CPH

MDWCPH

Chicago Midway

Sun 5/3

1:24 pm-11:05 am

2 stops14h 41m

Kastrup Copenhagen

Fri 5/8

9:00 am-6:33 pm

2 stops16h 33m

$728

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How to get the cheapest flight ticket from Illinois to Denmark

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 Denmark?

In general, February is the cheapest month to fly from Illinois to Denmark. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $492. If you aren’t able to travel to Denmark during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $515.

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

The cheapest day to depart from Illinois to Denmark is on a Wednesday. Travelers who choose to depart for Denmark on a Wednesday will often find tickets for as low as $577. On the other hand, Friday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $637.

What is the cheapest Illinois to Denmark flight route?

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

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

You are more likely to see cheaper flights to Denmark from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Denmark for around $655 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denmark from Illinois for as low as $557 on momondo.

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

There are 3 cabin classes available to choose from on Illinois to Denmark 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 Illinois to Denmark flights?

You could potentially save up to 5% on your flight if you consider stops on a Illinois to Denmark flight.

Cheap Illinois to Denmark flight deals and tips

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

Best Price Found	$380
Fastest flight time	8h 10m
Direct flights	Every day
Airports in Denmark	19 airports

The best one-way flight to Denmark from Illinois in the past 72 hours is $380. The best round-trip flight deal from Illinois to Denmark found on momondo in the last 72 hours is $588.

The fastest flight from Illinois to Denmark takes 8h 10m

Direct flights go from Illinois to Denmark every day.

There are 19 airports in Denmark. From Illinois there are direct flights to Kastrup Copenhagen (CPH).

Search flight deals

When did momondo last update prices for flights from Illinois to Denmark?
Prices for flights from Illinois to Denmark were last updated today.
How many operators does momondo search for flights from Illinois to Denmark?
As of March 2026, there are 10 operators available to choose from for flights from Illinois to Denmark.
How old do you have to be to fly from Illinois to Denmark?
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 Illinois to Denmark.
What documentation or ID do you need to fly to Denmark?
The required travel and health documents for your Denmark trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denmark. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Denmark?
Based on momondo bookings for flights between Illinois and Denmark, the leading plane model is Boeing 787 Dreamliner, making up 16.75% of the total bookings. Other popular models include Boeing 787-8 Dreamliner with 16.52%, Airbus A330-300 with 12.47%, and Boeing 767-300 with 12.04%.

Best airlines flying from Illinois to Denmark

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $384	Free Cancellation	Rating 7.1 11,519 reviews	Search American Airlines flights
Icelandair	PriceFrom $415	Free Cancellation	Rating 7.0 627 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $453	Free Cancellation	Rating 7.3 1,725 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom $508	Free Cancellation	Rating 6.7 7,824 reviews	Search British Airways flights
Lufthansa	PriceFrom $514	Free Cancellation	Rating 6.8 7,871 reviews	Search Lufthansa flights
United Airlines	PriceFrom $540	Free Cancellation	Rating 7.4 9,500 reviews	Search United Airlines flights
Air Canada	PriceFrom $541	Free Cancellation	Rating 7.1 10,853 reviews	Search Air Canada flights
KLM	PriceFrom $545	Free Cancellation	Rating 7.8 1,477 reviews	Search KLM flights
SWISS	PriceFrom $548	Free Cancellation	Rating 7.5 1,906 reviews	Search SWISS flights
Delta	PriceFrom $633	Free Cancellation	Rating 7.9 8,352 reviews	Search Delta flights

Why use momondo?

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

Finding the right flight to Denmark from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Denmark quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Illinois to Denmark flights to just show those with flexible booking policies.

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

Once you have performed a search for Illinois to Denmark flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Illinois to Denmark flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Denmark trip

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Popular cities in Denmark

Flights to Copenhagenfrom $373

Flights to Billundfrom $517

Flights to Aalborgfrom $480

Flights to Aarhusfrom $466

Flights to Sønderborgfrom $1,089

Flights to Karupfrom $760

Flights to Esbjergfrom $1,311

Cheap flights from Illinois to Denmark from $248

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Denmark departing on 4/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Icelandair flights from Illinois to Denmark

Our best Icelandair deals on Illinois to Denmark flight tickets

KLM flights from Illinois to Denmark

Our best KLM deals on Illinois to Denmark flight tickets

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

See travel insights to Denmark from

How to get the cheapest flight ticket from Illinois to Denmark

What is the cheapest month to fly to Denmark?

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

What is the cheapest Illinois to Denmark flight route?

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

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

Can stopping save me money on Illinois to Denmark flights?

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

What airlines fly to Denmark?

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

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

Cheap Illinois to Denmark flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Denmark

Best airlines flying from Illinois to Denmark

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

Why use momondo?

An easier way to manage your Denmark 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 Denmark

Popular cities in Denmark

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

Illinois flight routes

According to popular flight searches on momondo this year

Denmark flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Denmark

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Denmark

List of cabin classes available on flights landing in Denmark. Availability may vary depending on flight origin and airline.

Complete your trip to Denmark

Explore popular destinations other users love

According to popular flight searches on momondo this year