$362 Find Cheap Flights from Copenhagen to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Copenhagen to Illinois departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Copenhagen to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Copenhagen to Illinois, as well as popular online travel agencies
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Flight Deals

Book Cheap Copenhagen to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Copenhagen to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Copenhagen to Illinois

Sat, Oct 31 - Tue, Nov 3
British Airways Logo
6:15 am - 7:45 pm
CPH
-
ORD
19h 30m
2 stops
British Airways Logo
9:45 pm - 7:00 pm
ORD
-
CPH
14h 15m
1 stop
$533British Airways
Sat, May 23 - Wed, May 27
Icelandair Logo
2:00 pm - 6:15 pm
CPH
-
ORD
11h 15m
1 stop
Icelandair Logo
10:25 pm - 6:20 am
ORD
-
CPH
24h 55m
1 stop
$540Icelandair
Tue, Aug 25 - Thu, Sep 3
American Airlines Logo
3:20 pm - 11:57 pm
CPH
-
ORD
15h 37m
2 stops
American Airlines Logo
9:30 pm - 4:15 pm
ORD
-
CPH
11h 45m
1 stop
$544American Airlines
Thu, Jun 4 - Fri, Jun 19
American Airlines Logo
3:20 pm - 2:17 pm
CPH
-
ORD
29h 57m
1 stop
American Airlines Logo
9:26 pm - 11:35 am
ORD
-
CPH
31h 09m
1 stop
$552American Airlines
Thu, Jun 4 - Fri, Jun 19
Multiple Airlines Logo
3:20 pm - 12:34 am
CPH
-
ORD
16h 14m
1 stop
Multiple Airlines Logo
5:00 pm - 11:35 am
ORD
-
CPH
11h 35m
1 stop
$558Multiple Airlines
Tue, Jun 2 - Tue, Jun 9
Multiple Airlines Logo
3:20 pm - 12:38 am
CPH
-
ORD
16h 18m
1 stop
Multiple Airlines Logo
9:26 pm - 11:35 am
ORD
-
CPH
31h 09m
1 stop
$564Multiple Airlines
Fri, Aug 28 - Wed, Nov 11
Lufthansa Logo
6:30 am - 1:25 pm
CPH
-
STL
13h 55m
1 stop
Lufthansa Logo
3:50 pm - 12:00 pm
STL
-
CPH
13h 10m
1 stop
$644Lufthansa
Fri, Aug 28 - Wed, Nov 11
Lufthansa Logo
6:30 am - 1:25 pm
CPH
-
STL
13h 55m
1 stop
Lufthansa Logo
2:00 pm - 1:35 pm
STL
-
CPH
16h 35m
2 stops
$645Lufthansa
Fri, Jun 26 - Fri, Jul 3
Air Canada Logo
12:15 pm - 8:25 pm
CPH
-
STL
15h 10m
1 stop
Air Canada Logo
12:10 pm - 8:55 am
STL
-
CPH
13h 45m
1 stop
$654Air Canada
Fri, Jun 5 - Tue, Jun 9
Air Canada Logo
12:15 pm - 8:25 pm
CPH
-
STL
15h 10m
1 stop
Air Canada Logo
8:40 am - 8:55 am
STL
-
CPH
17h 15m
2 stops
$660Air Canada
Booking Insights

KAYAK's insights & trends for Copenhagen to Illinois flights

Get data-powered insights and trends into flights from Copenhagen to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Copenhagen to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Copenhagen to Illinois departing in October.

What is the cheapest Copenhagen to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Copenhagen found in the last 72 hours was to Chicago, at $768 round-trip. The most popular route is from Copenhagen (CPH) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $768.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Copenhagen to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $756 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,067.

Can I save money by flying with a layover from Copenhagen to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $600 on average.

What is the cheapest month to fly from Copenhagen to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Copenhagen to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Copenhagen to Illinois is November, when tickets cost $312 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,727 and $1,355 respectively.

What’s the cheapest day of the week to fly from Copenhagen to Illinois?

The average price of all round-trip flights from Copenhagen to Illinois clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Copenhagen to Illinois, look for departures on Wednesdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Illinois, Wednesday is the cheapest day to fly and Tuesday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Copenhagen to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Copenhagen to Illinois, you should book around 4 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonJanuary
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 19% increase in price.

Flights from Copenhagen to Illinois: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Copenhagen to Illinois 
TFlew with Scandinavian Airlines
CPH
-
ORD
May 2026
Go through passport control as early as you can. The wait was very long and people nearly missed the flight.
JdubFlew with Scandinavian Airlines
CPH
-
ORD
Apr 2024
Remember to make time for passport control when going back and forth. It's after security. I was a little confused as a first time traveler.

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Copenhagen to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Copenhagen to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Copenhagen to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Copenhagen to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Copenhagen to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Copenhagen to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Copenhagen to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Copenhagen to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Copenhagen to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Copenhagen to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Copenhagen to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Scandinavian AirlinesOverall score based on 1775 reviews
6.7Food
7.3Comfort
8.0Crew
6.7Entertainment
7.7Boarding
Airline reviews

My daughter always gets sick when we order the gluten free meal option. Internet didn’t work as advertised.

8.0 ExcellentT, May 2026
CPH - ORD
Read more Scandinavian Airlines reviews

My daughter always gets sick when we order the gluten free meal option. Internet didn’t work as advertised.

Nothing to answer your questions appropriately. It was just a 2hrs flight from London Heathrow and we were served a cup of tea only. So the questions about food aren't relevant and also, there's no entertainment on these short haul flights. Overall, the flight ✈️ was okay.

The seat in economy are comfy, with some legroom and shoulder room. The food was above average. The plane was newish.

Excellent crew members, but my seat and food wasn’t the best

All went smoothly. That's what I want on a long flight.

I expected more, but they will nickel and dime you for everything. I did not enjoy flying with this airline.

Very uncomfortable and cramped seating. Only 1 bathroom for entire economy section, most of the plane. No food provided for a 5.5 hour flight. Bad experience

I wish they have given us explanations for the delays. And the rebooking process in Copenhagen was too long. I had to wait about 4 hours before they assign me a hotel. From there the handling process (accommodation, transportation and meal) was excellent.

Since our earlier flight was delayed, we missed this flight and were rerouted on Lufthansa 2 days later.

Scandinavian Airlines is terrible. Flight was late. Lost luggage. Rude flight attendants. Terrible experience.

The clerk at check in for my bags was very rude. My credit card was hacked during my vacation and she told me it was not possible to pay in cash for my bag. “You bought the cheapest ticket, you should have bought a ticket that included a bag. If you cannot pay with a credit card, we will not let you on this flight”. She spoke to her supervisor and then told me , I could ask other passengers, if they would use their credit card to check my bag. I had to beg 5 different people, till one agreed to use their credit card. I payed them cash of course. This was a very stressful and humiliating experience for me. I strongly suggest you build in some kind of provision for travelers who got robbed.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Flight crew was super friendly and helpful. Food was frequent and honestly pretty good. Plenty of on-board entertainment. Economy seats are super cramped for such a long flight, but the crew allowed people to get up and stretch, and kids could wander with their parents, so we all made it work. Overall a very good experience.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

Everything you need to know for your flight from Copenhagen to Illinois

Information on your arrival and departure airports