$380 Find Cheap Flights from Copenhagen to Illinois - Compare and Save

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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?

Flight prices are below average for this route right now.

Flights to Illinois from Copenhagen usually cost between $582 and $856 in November.
The lowest price found in the past 5 days was $467 on Icelandair (Nov 4-Nov 11).

What is the cheapest Copenhagen to Illinois flight route?

The cheapest ticket to Illinois from Copenhagen found in the last 5 days was to Chicago, at $662 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 5 days was $662.

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

The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $873 on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $873.

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

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $650 on average.

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

The cheapest month for flights from Copenhagen to Illinois is February, when tickets cost $546 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $899 and $880 respectively.

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

If you are looking for a flight deal from Copenhagen to Illinois, look for departures on Fridays 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 get a below average price on the flight from Copenhagen to Illinois, you should book around 3 weeks before departure, which saves you about 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low season

January

Cheapest flight

$380
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from Copenhagen to Chicago

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-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-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 3 airlines serving from Copenhagen to Illinois

 
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 1965 reviews
6.8Food
7.7Boarding
8.0Crew
6.8Entertainment
7.3Comfort
Airline reviews

Payed $140 xtra for seat arrangement Did not get the preselected seats neiter outbound nor inbound. Absolutely not worth the xtra money

8.0 ExcellentJ Martin, Aug 2026
Read more Scandinavian Airlines reviews

Payed $140 xtra for seat arrangement Did not get the preselected seats neiter outbound nor inbound. Absolutely not worth the xtra money

Gate agent in Atlanta refused to let me take my carry-on on the plane even though I met weight and size requirements and the plane was half empty. My ticket clearly stated that I was entitled to one carry-on and one personal item. Will not fly this airline again.

not good missed my connection SAS did not leave me anywhere near enough time to make my connection. Ended up adding about 10 hours to my travel day

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

The flight was very cold, and the seats were rather uncomfortable. The food has been better on our other SAS experiences. Most significantly, the luggage with most of my wife's personal items and clothes didn't make the flight. Hoping for a quick resolution, but no real opportunity to speak with a Human has us concerned.

It was so hot on the plane. No air jets above the seats

Please see my comments for the flight from Chicago to Copenhagen

We were sitting in SAS plus. Super friendly, service that went above and beyond on a Full Flight too! Meals were deliscious and trays were cleared promptly. Generous drinks offered throughout the flight. Would like to suggest better movies on offer to watch.... In all genres and maybe more cooking shows? There was only 1, Nadia's Everyday Baking... Thank you

This was my first time flying SAS and used them for 4 flights. The crews, flight and communication was outstanding. I flew premium economy and was extremely impressed by their SAS lounges. I will 100% ise SAS again. Everyone was so pleasant!

little entertainment choices. Seat/bed too firm an no sleeping mat

On boarding crew at the airport called in the boarding numbers too early meaning before the previous line was completed resulting in later numbers getting to board ahead. Also she asked those who boarded from number 3 to have the tags in their carry-on bags and leave it in the jet bridge. Most of the overhead bins were empty though. This is more work for the ground staff in addition to more inconvenience for passengers waiting to get their carry-ons from the jet bridge.

ok, butt flght was delyed for 2,5h from Frankfurt, and next Flight to Columbuse same

Flight was great. Almost miss my connecting flight due to late departure from Haneda. Had to run all through airport in Chicago to make the flight. Experience was great for 1st time flyers using ANA Airlines.

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

Seats are complete BS for 10 hrs. The guy at counter canceled our return flight from europe. Lufthansa on the way back made United look like a trailer park gathering. If given the opportunity, I will never fly united again. Lufthansa seats werent much better to be fair but the service was a 10 out of 10. Incant express how difficult umited made my trip.

It was a great experience to fly with ANA, the sit is very comfortable.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

Gluten free snack options and meals that offer both gluten free and dairy free.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

There were no places to sit at the gate. Most people had to sit on the floor or stand waiting for the gate to open and board. We were told we needed passport and the person hardly looked at them. Maybe for 2 seconds. No announcement made asking to board by row or group. On a 5.5 hour flight the crew only came through the cabin 2 times offering water and buy everything else. For the price of the ticket at least offer free soda! The airliner was very comfortable

The plane is extremely cramped. Water is offered for free. It's pretty bare bones. Staff was nice

Paid for seat upgrade that didn’t happen. Large luggage charge. No food or snacks without paying extra. Tight seats - even on row 11.

Everyone at icel air just passes the buck if there's a problem which there was they don't want to know about it any company can be good if everything goes well it's what shows is when something doesn't go well how they handle it and trust me Iceland air does not know how to handle any kind of problem

At least one soda free, felt like I was nickeled to death.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

Highly disorganized company, poor customer service. Packed seats on a 737 for a trans-atlantic 9 hour flight. Greedy company policies, no meal or snack provided for 9 hour flight.

We had to be bussed to the plane. And it was raining. Not a pleasant experience.

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

Information on your arrival and departure airports