$345 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 typical for this route right now.

Flights to Illinois from Copenhagen usually cost between $526 and $726 in November.
The lowest price found in the past 5 days was $543 on Multiple Airlines (Nov 12-Nov 25).

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 $556 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 $556.

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 $843 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 $843.

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 2 stops layover the cheapest option at $788 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 $540 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $905 and $883 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 Thursdays 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 Saturday 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 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low season

January

Cheapest flight

$345
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 28% 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 
KayFlew with Scandinavian Airlines-Sep 2026
Pack earplugs and a sleep mask. An N95 mask in case you are sick and coughing a lot to protect passengers around you.
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 2031 reviews
7.4Comfort
7.7Boarding
6.8Entertainment
8.0Crew
6.8Food
Airline reviews

Some of the rudest flight crew I have encountered in over 40 years of flying. Despite pre-ordering a vegetarian meal, the only options provided included meat, with no other choices or substitutes offered. Additionally, the sound on the entertainment system was not working. With flight delays had only 20 minutes to make it to next boarding gate and after running most of the way made it to flight with 2 minutes to spare Will never fly SAS again and I am looking for partial refund for false advertisement.

2.0 MediocreAnonymous, Oct 2026
Read more Scandinavian Airlines reviews

Some of the rudest flight crew I have encountered in over 40 years of flying. Despite pre-ordering a vegetarian meal, the only options provided included meat, with no other choices or substitutes offered. Additionally, the sound on the entertainment system was not working. With flight delays had only 20 minutes to make it to next boarding gate and after running most of the way made it to flight with 2 minutes to spare Will never fly SAS again and I am looking for partial refund for false advertisement.

I feel SAS is the only airline that does not let you choose your seats when you're checking in, and so we were forced into two middle seats and it was quite uncomfortable. There are not enough new and quality movies available on the entertainment system. After our inbound SAS flight being canceled with less than 12 hours til departure, the whole experience flyign with SAS wasn't great.

Didn't care much for the food but maybe that's just because I'm American and the food was very European. Would have liked a second alcoholic beverage service in a 7-8 hour flight. I was offered two wines to have with dinner though and should have accepted both. I didn't realize they would only offer alcohol once. Lights were never turned off in the cabin for sleeping. Flight was delayed several hours with zero explanation from SAS. However, the flight attendants were fantastic. We were traveling with a friend who needed oxygen and they were very attentive and helped him throughout the flight. That was greatly appreciated. The pillows and blankets are great. Gift bags with toothbrush etc so nice! This was our first time traveling Premium so alot of perks we were used to getting! The flight was smooth and I loved watching the planes location on the seat screen and being able to watch movies etc. overall it was great I would definitely recommend SAS to anyone and hope to fly with you again sometime.

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

I had bad experience with United airline. No live rep, they only have AI that respond to customers concern

Flight and crew were great. Need more legroom and do not allow seats to recline.

We arrived to Chicago nearly 30 minutes early, which was great, but then was on the ground for over an hour because the gate was not available. The issue I had was the pilot estimation was frustrating. First he said he was informed it would be 20 minutes but he said "it will probably be more like 10 minutes". After 30 minutes he came back on the comm and said it would be another 10 minutes, maybe 20. I understand he was only giving estimates but he also layered in his own gut feel. We were never told why we didn't have a gate even after our scheduled entry.

Just sat on the run way after we arrived early

The Code Share with Air Canada was not very streamlined. I had to check in at airport (not online) on the outbound and return flights

Stored my cloth purse under seat in front off me as instructed. When I retrieved it, half of it was soaked, along with everything inside it. I don’t really know how that could have been prevented because the area did not look wet, but I was not happy about it.

Phx - ORD was nice 737 with starlink and the ORD - grr was ancient bare bones airbus with not even a power port lol

It was easy to board, and the staff was friendly and helpful. What could have been better is that I shouldn't have to pay extra for a seat that doesn't recline.

Was on the plane sitting longer than the actual flight in air was, boarded at 5:45p and didn't take off until 6:50p flight was only about 30 minutes long. Just was poor experience will booking more with American Airlines.

The couple in front of me were constantly talking over the announcement from the captain and this was annoying me.

Flight was ok but the food was poor, and the business chairs were not 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.

More options for your flight from Copenhagen to Illinois

Complete your trip to Illinois with a hotel stay or car rental