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Cheap flights from Denmark to Illinois from $332

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 5/22. 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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0 bags

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Find the cheapest flights from Denmark to Illinois

Recent round-trip flight deals from Denmark to Illinois

Enter your travel dates to find the best prices.
Icelandair Logo
6:15 am - 6:20 pm
CPH
-
ORD
18h 05m
1 stop
Icelandair Logo
7:25 pm - 9:45 pm
ORD
-
CPH
19h 20m
1 stop
$466Icelandair
Wed, Mar 25 - Tue, Mar 31
Icelandair Logo
12:55 pm - 5:20 pm
CPH
-
ORD
11h 25m
1 stop
Icelandair Logo
7:30 pm - 11:45 am
ORD
-
CPH
10h 15m
1 stop
$486Icelandair
Fri, Feb 27 - Mon, Mar 9
Multiple Airlines Logo
7:25 am - 5:35 pm
CPH
-
ORD
17h 10m
1 stop
Multiple Airlines Logo
10:35 pm - 4:50 pm
ORD
-
CPH
11h 15m
1 stop
$490Multiple Airlines
Fri, Aug 7 - Mon, Aug 17
Multiple Airlines Logo
10:25 am - 8:44 pm
BLL
-
ORD
17h 19m
2 stops
Multiple Airlines Logo
6:20 pm - 2:35 pm
ORD
-
BLL
14h 15m
1 stop
$507Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
Lufthansa Logo
6:30 am - 1:25 pm
CPH
-
STL
13h 55m
1 stop
Lufthansa Logo
1:10 pm - 4:35 pm
STL
-
CPH
20h 25m
2 stops
$518Lufthansa
Fri, Apr 3 - Tue, Apr 7
Lufthansa Logo
10:20 am - 9:40 pm
BLL
-
STL
18h 20m
2 stops
Lufthansa Logo
3:50 pm - 10:00 am
STL
-
BLL
11h 10m
1 stop
$531Lufthansa
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:45 am - 3:20 pm
BLL
-
ORD
15h 35m
1 stop
United Airlines Logo
4:05 pm - 10:00 am
ORD
-
BLL
10h 55m
1 stop
$562United Airlines
Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
6:45 am - 3:20 pm
BLL
-
ORD
15h 35m
1 stop
United Airlines Logo
3:20 pm - 1:25 pm
ORD
-
BLL
15h 05m
1 stop
$563United Airlines
Sat, Feb 28 - Wed, Mar 4
Scandinavian Airlines Logo
2:25 pm - 4:10 pm
AAL
-
ORD
32h 45m
1 stop
Scandinavian Airlines Logo
7:15 pm - 9:20 am
ORD
-
AAL
31h 05m
1 stop
$722Scandinavian Airlines
Thu, Apr 9 - Mon, Apr 13
Scandinavian Airlines Logo
6:50 pm - 4:10 pm
AAL
-
ORD
28h 20m
1 stop
Scandinavian Airlines Logo
7:15 pm - 11:55 pm
ORD
-
AAL
21h 40m
1 stop
$723Scandinavian Airlines
Thu, Apr 9 - Mon, Apr 13

American Airlines flights from Denmark to Illinois

Our best American Airlines deals on Denmark to Illinois flight tickets
American Airlines
Feb 28
CPH6:15 amKastrup Copenhagen
17h 45m
1 stop
ORD5:00 pmChicago O'Hare Intl
Mar 8
ORD9:35 pmChicago O'Hare Intl
15h 55m
1 stop
CPH7:30 pmKastrup Copenhagen
$529
American Airlines
Mar 7
CPH6:15 amKastrup Copenhagen
18h 43m
2 stops
ORD5:58 pmChicago O'Hare Intl
Mar 23
ORD4:04 pmChicago O'Hare Intl
13h 26m
2 stops
CPH11:30 amKastrup Copenhagen
$543
American Airlines
Mar 13
CPH6:55 amKastrup Copenhagen
17h 05m
2 stops
ORD6:00 pmChicago O'Hare Intl
Mar 21
ORD2:30 pmChicago O'Hare Intl
15h 15m
2 stops
CPH11:45 amKastrup Copenhagen
$563

Delta flights from Denmark to Illinois

Our best Delta deals on Denmark to Illinois flight tickets
Delta
Apr 14
CPH9:25 amKastrup Copenhagen
11h 50m
1 stop
ORD2:15 pmChicago O'Hare Intl
Apr 21
ORD1:36 pmChicago O'Hare Intl
16h 44m
2 stops
CPH1:20 pmKastrup Copenhagen
$520
Delta
Apr 14
CPH6:00 amKastrup Copenhagen
17h 18m
2 stops
ORD4:18 pmChicago O'Hare Intl
Apr 21
ORD1:36 pmChicago O'Hare Intl
16h 44m
2 stops
CPH1:20 pmKastrup Copenhagen
$525
Delta
Apr 14
CPH6:00 amKastrup Copenhagen
18h 58m
2 stops
MDW5:58 pmChicago Midway
Apr 21
MDW5:21 pmChicago Midway
15h 24m
2 stops
CPH3:45 pmKastrup Copenhagen
$536

momondo 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, momondo users made 832,500 searches. Data last updated February 9, 2026.
Use the filters below to find and compare flights from Denmark to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Wed 3/25

6:15 am-6:20 pm

1 stop18h 05m

Chicago O'Hare Intl

Tue 3/31

7:25 pm-9:45 pm

1 stop19h 20m

$466

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Fri 2/27

12:55 pm-5:20 pm

1 stop11h 25m

Chicago O'Hare Intl

Mon 3/9

7:30 pm-11:45 am

1 stop10h 15m

$486

CopenhagenChicago

CPH - ORD

CPHORD

Kastrup Copenhagen

Fri 8/7

7:25 am-5:35 pm

1 stop17h 10m

Chicago O'Hare Intl

Mon 8/17

10:35 pm-4:50 pm

1 stop11h 15m

$490

BillundChicago

BLL - ORD

BLLORD

Billund

Mon 3/2

10:25 am-8:44 pm

2 stops17h 19m

Chicago O'Hare Intl

Mon 3/9

6:20 pm-2:35 pm

1 stop14h 15m

$507

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 4/3

6:30 am-1:25 pm

1 stop13h 55m

Lambert-St Louis

Tue 4/7

1:10 pm-4:35 pm

2 stops20h 25m

$518

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Wed 2/25

10:20 am-9:40 pm

2 stops18h 20m

Lambert-St Louis

Sun 3/1

3:50 pm-10:00 am

1 stop11h 10m

$531

BillundChicago

BLL - ORD

BLLORD

Billund

Sat 2/28

6:45 am-3:20 pm

1 stop15h 35m

Chicago O'Hare Intl

Wed 3/4

4:05 pm-10:00 am

1 stop10h 55m

$562

BillundChicago

BLL - ORD

BLLORD

Billund

Sat 2/28

6:45 am-3:20 pm

1 stop15h 35m

Chicago O'Hare Intl

Wed 3/4

3:20 pm-1:25 pm

1 stop15h 05m

$563

AalborgChicago

AAL - ORD

AALORD

Aalborg

Thu 4/9

2:25 pm-4:10 pm

1 stop32h 45m

Chicago O'Hare Intl

Mon 4/13

7:15 pm-9:20 am

1 stop31h 05m

$722

AalborgChicago

AAL - ORD

AALORD

Aalborg

Thu 4/9

6:50 pm-4:10 pm

1 stop28h 20m

Chicago O'Hare Intl

Mon 4/13

7:15 pm-11:55 pm

1 stop21h 40m

$723

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

The cheapest month to fly to Illinois from Denmark is in September. Flight prices, which tend to average around $537, 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 September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $546.

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 $588. Flights from Denmark to Illinois on a Friday will generally be more expensive and average around $934. 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 at noon. Flights from Denmark to Illinois during this time can be as low as $701. Flights in the afternoon are often more expensive with an average ticket price of $963.

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 $666 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 $579 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 38% 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

$683

Fastest flight time

9h 15m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Denmark in the past 72 hours is $683. The best round-trip flight deal from Denmark to Illinois found on momondo in the last 72 hours is $470.
The fastest flight from Denmark to Illinois takes 9h 15m
Direct flights go from Denmark to Illinois every day.
There are 98 airports in Illinois. From Denmark there are direct flights to Chicago O'Hare Intl (ORD).
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?

  • 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?

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
LufthansaPriceFrom $530Free CancellationRating
6.8
7,775 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom $533Free CancellationRating
7.3
1,679 reviews
Search Scandinavian Airlines 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.

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