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Cheap flights from Illinois to Denmark from $222

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 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:20 pm - 3:05 pm
ORD
-
BLL
12h 45m1 stop
Scandinavian Airlines Logo
9:55 am - 4:55 pm
BLL
-
ORD
14h 00m1 stop
$465Scandinavian Airlines
Mon, Jan 19 - Sun, Feb 1
Scandinavian Airlines Logo
7:10 pm - 8:45 pm
ORD
-
BLL
18h 35m1 stop
Scandinavian Airlines Logo
11:05 am - 4:45 pm
BLL
-
ORD
12h 40m1 stop
$472Scandinavian Airlines
Sun, Feb 15 - Thu, Feb 19
Scandinavian Airlines Logo
7:10 pm - 6:30 pm
ORD
-
BLL
16h 20m2 stops
Scandinavian Airlines Logo
11:05 am - 4:45 pm
BLL
-
ORD
12h 40m1 stop
$475Scandinavian Airlines
Sun, Feb 15 - Thu, Feb 19
Scandinavian Airlines Logo
7:20 pm - 11:55 pm
ORD
-
BLL
21h 35m1 stop
Scandinavian Airlines Logo
9:55 am - 4:55 pm
BLL
-
ORD
14h 00m1 stop
$480Scandinavian Airlines
Mon, Jan 19 - Sun, Feb 1
Scandinavian Airlines Logo
7:20 pm - 3:05 pm
ORD
-
BLL
12h 45m1 stop
Scandinavian Airlines Logo
8:00 pm - 4:45 pm
BLL
-
ORD
27h 45m2 stops
$487Scandinavian Airlines
Mon, Jan 19 - Sun, Feb 1
TAP AIR PORTUGAL Logo
7:10 pm - 11:40 pm
ORD
-
CPH
21h 30m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 2:45 pm
CPH
-
ORD
15h 45m1 stop
$492TAP AIR PORTUGAL
Wed, Jan 14 - Sun, Jan 25
Air Canada Logo
3:35 pm - 11:25 am
ORD
-
CPH
13h 50m2 stops
Air Canada Logo
6:55 am - 6:45 pm
CPH
-
ORD
17h 50m2 stops
$494Air Canada
Mon, Mar 23 - Wed, Mar 25
Brussels Airlines Logo
5:55 pm - 5:30 pm
ORD
-
CPH
16h 35m1 stop
Brussels Airlines Logo
6:55 am - 12:10 pm
CPH
-
ORD
12h 15m1 stop
$496Brussels Airlines
Mon, Jan 12 - Mon, Jan 26
Icelandair Logo
6:30 pm - 7:50 pm
ORD
-
CPH
18h 20m1 stop
Icelandair Logo
8:50 pm - 5:20 pm
CPH
-
ORD
27h 30m1 stop
$498Icelandair
Wed, Jan 7 - Mon, Jan 12
Icelandair Logo
7:30 pm - 7:50 pm
ORD
-
CPH
18h 20m1 stop
Icelandair Logo
12:55 pm - 6:20 pm
CPH
-
ORD
11h 25m1 stop
$500Icelandair
Wed, Mar 18 - Tue, Mar 24

Air Canada flights from Illinois to Denmark

Our best Air Canada deals on Illinois to Denmark flight tickets
Air Canada
Mar 9
ORD3:35 pmChicago O'Hare Intl
13h 50m
2 stops
CPH11:25 amKastrup Copenhagen
Mar 11
CPH6:50 amKastrup Copenhagen
15h 49m
2 stops
ORD4:39 pmChicago O'Hare Intl
$496
Find similar
Air Canada
Jan 26
ORD3:35 pmChicago O'Hare Intl
39h 35m
2 stops
CPH2:10 pmKastrup Copenhagen
Jan 29
CPH6:55 amKastrup Copenhagen
20h 15m
2 stops
ORD8:10 pmChicago O'Hare Intl
$519
Find similar
Air Canada
Jan 15
ORD2:00 pmChicago O'Hare Intl
15h 25m
2 stops
CPH12:25 pmKastrup Copenhagen
Jan 28
CPH9:50 amKastrup Copenhagen
16h 01m
2 stops
ORD6:51 pmChicago O'Hare Intl
$545
Find similar

Virgin Atlantic flights from Illinois to Denmark

Our best Virgin Atlantic deals on Illinois to Denmark flight tickets
Virgin Atlantic
Feb 11
MDW10:46 amChicago Midway
19h 24m
2 stops
CPH1:10 pmKastrup Copenhagen
Feb 17
CPH8:40 pmKastrup Copenhagen
28h 05m
2 stops
MDW5:45 pmChicago Midway
$764
Find similar
Virgin Atlantic
Jan 4
MDW9:50 amChicago Midway
20h 15m
2 stops
CPH1:05 pmKastrup Copenhagen
Jan 10
CPH8:30 amKastrup Copenhagen
20h 37m
2 stops
MDW10:07 pmChicago Midway
$2,795
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Denmark 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 December 26, 2025.
Use the filters below to find and compare flights from Illinois to Denmark that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Mon 1/19

7:20 pm-3:05 pm

1 stop12h 45m

Billund

Sun 2/1

9:55 am-4:55 pm

1 stop14h 00m

$465

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Sun 2/15

7:10 pm-8:45 pm

1 stop18h 35m

Billund

Thu 2/19

11:05 am-4:45 pm

1 stop12h 40m

$472

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Sun 2/15

7:10 pm-6:30 pm

2 stops16h 20m

Billund

Thu 2/19

11:05 am-4:45 pm

1 stop12h 40m

$475

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Mon 1/19

7:20 pm-11:55 pm

1 stop21h 35m

Billund

Sun 2/1

9:55 am-4:55 pm

1 stop14h 00m

$480

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Mon 1/19

7:20 pm-3:05 pm

1 stop12h 45m

Billund

Sun 2/1

8:00 pm-4:45 pm

2 stops27h 45m

$487

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Wed 1/14

7:10 pm-11:40 pm

1 stop21h 30m

Kastrup Copenhagen

Sun 1/25

6:00 am-2:45 pm

1 stop15h 45m

$492

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Mon 3/23

3:35 pm-11:25 am

2 stops13h 50m

Kastrup Copenhagen

Wed 3/25

6:55 am-6:45 pm

2 stops17h 50m

$494

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Mon 1/12

5:55 pm-5:30 pm

1 stop16h 35m

Kastrup Copenhagen

Mon 1/26

6:55 am-12:10 pm

1 stop12h 15m

$496

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Wed 1/7

6:30 pm-7:50 pm

1 stop18h 20m

Kastrup Copenhagen

Mon 1/12

8:50 pm-5:20 pm

1 stop27h 30m

$498

ChicagoCopenhagen

ORD - CPH

ORDCPH

Chicago O'Hare Intl

Wed 3/18

7:30 pm-7:50 pm

1 stop18h 20m

Kastrup Copenhagen

Tue 3/24

12:55 pm-6:20 pm

1 stop11h 25m

$500

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Denmark from

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

What is the cheapest month to fly to Denmark?

In general, January 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 $467. If you aren’t able to travel to Denmark during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $502.

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 $538. 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 $675.

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

Flying to Denmark from Illinois in the evening is the least expensive time of day to depart. momondo users have found prices as low as $606 when looking at flights departing in the evening. At noon is when there is more demand to fly to Denmark, so prices are often more expensive at around $713 per ticket.

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 $660 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 $600 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?

No. A direct flight is the cheapest option for a flight between Illinois to Denmark.

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

$377

Fastest flight time

8h 05m

Direct flights

Every day

Airports in Denmark

19 airports
The best one-way flight to Denmark from Illinois in the past 72 hours is $377. The best round-trip flight deal from Illinois to Denmark found on momondo in the last 72 hours is $499.
The fastest flight from Illinois to Denmark takes 8h 05m
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?

  • 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?

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
IcelandairPriceFrom $421Free CancellationRating
7.0
592 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $456Free CancellationRating
7.4
1,625 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $489Free CancellationRating
7.2
11,064 reviews
Search American Airlines flights
LufthansaPriceFrom $496Free CancellationRating
6.8
7,655 reviews
Search Lufthansa flights
British AirwaysPriceFrom $508Free CancellationRating
6.7
7,617 reviews
Search British Airways flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,115 reviews
Search United Airlines flights
Air CanadaPriceFrom $541Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
SWISSPriceFrom $548Free CancellationRating
7.5
1,818 reviews
Search SWISS flights
FinnairPriceFrom $580Free CancellationRating
7.6
1,339 reviews
Search Finnair flights
KLMPriceFrom $596Free CancellationRating
7.7
1,434 reviews
Search KLM 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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