What airlines fly to Illinois?

Scandinavian Airlines, United Airlines and Icelandair are the top three most popular airlines that fly to Illinois from Copenhagen according to our data. Scandinavian Airlines is the first choice among our users, with 73% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

As of July 2025, 12 flights take off from Copenhagen 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.

What is the cheapest airline that flies from Kastrup Copenhagen to Illinois?

TAP AIR PORTUGAL is the most popular carrier operating from Kastrup Copenhagen to Illinois

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

As of July 2025, 1 flights take off from Copenhagen 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.

When did momondo last update prices for flights from Kastrup Copenhagen Airport to Illinois?

Prices for flights from Kastrup Copenhagen Airport to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Kastrup Copenhagen Airport to Illinois?

As of July 2025, there are 4 operators available to choose from for flights from Kastrup Copenhagen Airport to Illinois.

How old do you have to be to fly from Kastrup Copenhagen Airport to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kastrup Copenhagen Airport to Illinois.

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

The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$304 Cheap Flights from Copenhagen to Illinois in 2025

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Find the cheapest flights from Copenhagen to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

4:45 pm - 9:15 pmCPH-ORD

11h 30m1 stop

7:25 pm - 9:45 pmORD-CPH

19h 20m1 stop

$448Icelandair

Find Deal

Sat, Aug 30 - Mon, Sep 15

9:35 am - 7:55 pmCPH-ORD

17h 20m1 stop

3:35 pm - 12:00 pmORD-CPH

13h 25m1 stop

$458Lufthansa

Find Deal

Sat, Aug 30 - Mon, Sep 15

6:50 am - 2:55 pmCPH-ORD

15h 05m2 stops

8:40 am - 7:10 amORD-CPH

15h 30m1 stop

$467Air Canada

Find Deal

Sat, Aug 30 - Sun, Sep 14

6:50 am - 2:55 pmCPH-ORD

15h 05m2 stops

9:55 am - 7:10 amORD-CPH

14h 15m2 stops

$477Air Canada

Find Deal

Sat, Aug 30 - Sun, Sep 14

9:35 am - 7:55 pmCPH-ORD

17h 20m1 stop

10:40 am - 7:10 amORD-CPH

13h 30m1 stop

$492United Airlines

Find Deal

Sat, Aug 30 - Sun, Sep 14

9:35 am - 2:55 pmCPH-ORD

12h 20m1 stop

3:35 pm - 7:30 amORD-CPH

32h 55m1 stop

$494United Airlines

Find Deal

Sat, Aug 30 - Mon, Sep 15

6:45 am - 10:22 pmCPH-STL

22h 37m2 stops

4:08 pm - 2:50 pmSTL-CPH

15h 42m2 stops

$509American Airlines

Find Deal

Thu, Dec 4 - Mon, Dec 8

2:00 pm - 11:48 pmCPH-ORD

16h 48m2 stops

10:35 pm - 11:20 pmORD-CPH

17h 45m1 stop

$509American Airlines

Find Deal

Thu, Aug 21 - Tue, Aug 26

1:55 pm - 4:10 pmCPH-ORD

9h 15mnonstop

7:15 pm - 10:45 amORD-CPH

8h 30mnonstop

$518Scandinavian Airlines

Find Deal

Sat, Aug 30 - Sun, Sep 14

1:55 pm - 4:10 pmCPH-ORD

9h 15mnonstop

7:15 pm - 10:45 amORD-CPH

8h 30mnonstop

$520Scandinavian Airlines

Find Deal

Sat, Aug 30 - Mon, Sep 15

United Airlines flights from Copenhagen to Illinois

Our best United Airlines deals on Copenhagen to Illinois flight tickets

United Airlines

Aug 30

CPH9:35 amKastrup Copenhagen

17h 20m

1 stop

ORD7:55 pmChicago O'Hare Intl

Sep 14

ORD10:40 amChicago O'Hare Intl

13h 30m

1 stop

CPH7:10 amKastrup Copenhagen

$492

Find similar

United Airlines

Aug 30

CPH9:35 amKastrup Copenhagen

12h 20m

1 stop

ORD2:55 pmChicago O'Hare Intl

Sep 15

ORD3:35 pmChicago O'Hare Intl

32h 55m

1 stop

CPH7:30 amKastrup Copenhagen

$494

Find similar

United Airlines

Aug 31

CPH6:05 amKastrup Copenhagen

11h 55m

1 stop

ORD11:00 amChicago O'Hare Intl

Sep 10

ORD3:35 pmChicago O'Hare Intl

32h 35m

1 stop

CPH7:10 amKastrup Copenhagen

$498

Find similar

Lufthansa flights from Copenhagen to Illinois

Our best Lufthansa deals on Copenhagen to Illinois flight tickets

Lufthansa

Aug 30

CPH9:35 amKastrup Copenhagen

17h 20m

1 stop

ORD7:55 pmChicago O'Hare Intl

Sep 15

ORD3:35 pmChicago O'Hare Intl

13h 25m

1 stop

CPH12:00 pmKastrup Copenhagen

$458

Find similar

Lufthansa

Aug 18

CPH6:10 amKastrup Copenhagen

11h 50m

1 stop

ORD11:00 amChicago O'Hare Intl

Aug 25

ORD10:30 pmChicago O'Hare Intl

12h 55m

1 stop

CPH6:25 pmKastrup Copenhagen

$459

Find similar

Lufthansa

Aug 30

CPH9:35 amKastrup Copenhagen

17h 20m

1 stop

ORD7:55 pmChicago O'Hare Intl

Sep 14

ORD9:40 pmChicago O'Hare Intl

14h 05m

1 stop

CPH6:45 pmKastrup Copenhagen

$463

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Sat 8/30

4:45 pm-9:15 pm

1 stop11h 30m

Chicago O'Hare Intl

Mon 9/15

7:25 pm-9:45 pm

1 stop19h 20m

$448

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Sat 8/30

9:35 am-7:55 pm

1 stop17h 20m

Chicago O'Hare Intl

Mon 9/15

3:35 pm-12:00 pm

1 stop13h 25m

$458

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Sat 8/30

6:50 am-2:55 pm

2 stops15h 05m

Chicago O'Hare Intl

Sun 9/14

8:40 am-7:10 am

1 stop15h 30m

$467

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Sat 8/30

6:50 am-2:55 pm

2 stops15h 05m

Chicago O'Hare Intl

Sun 9/14

9:55 am-7:10 am

2 stops14h 15m

$477

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Sat 8/30

9:35 am-7:55 pm

1 stop17h 20m

Chicago O'Hare Intl

Sun 9/14

10:40 am-7:10 am

1 stop13h 30m

$492

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Sat 8/30

9:35 am-2:55 pm

1 stop12h 20m

Chicago O'Hare Intl

Mon 9/15

3:35 pm-7:30 am

1 stop32h 55m

$494

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 12/4

6:45 am-10:22 pm

2 stops22h 37m

Lambert-St Louis

Mon 12/8

4:08 pm-2:50 pm

2 stops15h 42m

$509

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Thu 8/21

2:00 pm-11:48 pm

2 stops16h 48m

Chicago O'Hare Intl

Tue 8/26

10:35 pm-11:20 pm

1 stop17h 45m

$509

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Sat 8/30

1:55 pm-4:10 pm

Nonstop9h 15m

Chicago O'Hare Intl

Sun 9/14

7:15 pm-10:45 am

Nonstop8h 30m

$518

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Sat 8/30

1:55 pm-4:10 pm

Nonstop9h 15m

Chicago O'Hare Intl

Mon 9/15

7:15 pm-10:45 am

Nonstop8h 30m

$520

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 Copenhagen 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 Copenhagen 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 $527.

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

The cheapest day to depart from Copenhagen to Illinois is on a Wednesday when prices can be found for as low as $505. Flights from Copenhagen 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 Copenhagen 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 Kastrup Copenhagen to Illinois flight route?

Fly from Kastrup Copenhagen to Chicago O'Hare Intl for the best Kastrup Copenhagen - 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 Copenhagen when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $619 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Copenhagen for as low as $545 on momondo.

What cabin class options are available on Kastrup Copenhagen to Illinois flights?

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

Cheap Copenhagen to Illinois flight deals and tips

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

Best Price Found	$304
Fastest flight time	9h 15m
Direct flights	Every day
Airports in Illinois	3 airports

The best one-way flight to Illinois from Copenhagen in the past 72 hours is $304. The best round-trip flight deal from Copenhagen to Illinois found on momondo in the last 72 hours is $448.

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

Direct flights go from Copenhagen 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 Kastrup Copenhagen Airport to Illinois?
Prices for flights from Kastrup Copenhagen Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Kastrup Copenhagen Airport to Illinois?
As of July 2025, there are 4 operators available to choose from for flights from Kastrup Copenhagen Airport to Illinois.
How old do you have to be to fly from Kastrup Copenhagen Airport to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kastrup Copenhagen Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Copenhagen to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Copenhagen to Illinois is Airbus A330-300, representing 83.94% of all bookings. The subsequent popular model is Airbus A350-900 at 16.06%.

Best airlines flying from Copenhagen to Illinois

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

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $352	Free Cancellation	Rating 7.0 520 reviews	Search Icelandair flights
United Airlines	PriceFrom $460	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Scandinavian Airlines	PriceFrom $515	Free Cancellation	Rating 7.3 1,457 reviews	Search Scandinavian Airlines flights

Why use momondo?

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

It is quick and easy to find Copenhagen 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 Copenhagen to Illinois with flexible booking policies on momondo?

Flights from Copenhagen to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Copenhagen to Illinois 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 Copenhagen to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Copenhagen 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

Popular cities in Illinois

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Cheap flights from Copenhagen to Illinois from $304

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Copenhagen to Illinois departing on 9/10. 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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Find the cheapest flights from Copenhagen to Illinois

Cheap round-trip flights

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Cheap last minute flights

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United Airlines flights from Copenhagen to Illinois

Our best United Airlines deals on Copenhagen to Illinois flight tickets

Lufthansa flights from Copenhagen to Illinois

Our best Lufthansa deals on Copenhagen to Illinois flight tickets

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

See travel insights to Illinois from

How to get the cheapest flight ticket from Copenhagen 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 Copenhagen 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 Kastrup Copenhagen to Illinois flight route?

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

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

What cabin class options are available on Kastrup Copenhagen to Illinois flights?

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

What is the cheapest airline that flies from Kastrup Copenhagen to Illinois?

TAP AIR PORTUGAL is the most popular carrier operating from Kastrup Copenhagen to Illinois

What airlines fly to Illinois?

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

As of July 2025, 1 flights take off from Copenhagen 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 Copenhagen to Illinois on average per week?

As of July 2025, 12 flights take off from Copenhagen 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.

Cheap Copenhagen to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Kastrup Copenhagen Airport to Illinois?

How many operators does momondo search for flights from Kastrup Copenhagen Airport to Illinois?

How old do you have to be to fly from Kastrup Copenhagen Airport to Illinois?

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

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

Best airlines flying from Copenhagen to Illinois

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

Why use momondo?

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

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

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

I’m not ready to book a flight from Copenhagen 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