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Find cheap flights from Copenhagen to Illinois from $249

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 5/23. 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
0 bags
Wed 5/29
Wed 6/5

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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

St. Louis
St. Louis2 stops$393

Good to know

Low season

January

High season

July
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 32% increase in price.

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 to Illinois from Copenhagen 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 to Illinois with an airline and back to Copenhagen 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 to Illinois from Copenhagen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Morning departure is around 87% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 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.
8.2
Singapore AirlinesOverall score based on 1479 reviews
8.4boarding
8.1comfort
8.7crew
7.8food
8.2entertainment
Airline reviews

My overall experience with Singapore Airlines is great. Will definitely fly Singapore airline again.

8.0 ExcellentAnonymous, Apr 2024SIN - JFK
Read more about Singapore Airlines reviews

My overall experience with Singapore Airlines is great. Will definitely fly Singapore airline again.

Great to have actual hot tastey meal on a flight. Well done

Awesome as always. I wish though the cabin for premium was upgraded.... Same old sane old :(

They made me check my carry on even though there was room We un boarded in a strange way but overall it was good

Cabin Crew always friendly and helpful. Seating cramped - foul smelling from toilets, high risk of disease. Guard personal property such as expensive sunglasses Coffee always awful and cold Meal trays toddler sized Not worth the extra cost to fly SQ - use a budget airline, same if not better experience

When boarding, after business class should be premium economy, but economy class already lined-up at the gate blocking premium economy to board. Singapore airline crew should done a better job to organize this chaos :( Thank you.

It seems paying premium economy does not make difference with economy. No priority boarding, not worthy paying extra$$$ for premium economy.

They were able to assist my elderly father and myself after not being able to check in to scoot. The counter service was phenomenal. They did what they could to get us on the next plane so we could catch our Connecting flight. Scoot closed early on us so we ended up missing our flight.

They are great with every aspect of customer service. Helped my elderly father and aided him with using the restroom.

The stewardess was very helpful all the way. My seat had an issue with headphones and after the replaced and gave me a new pair and noticed it was the seat I got a new chair to sit and a great ride back home

Horrible experience. They "GAME" with seats they decided to play where you can`t select or get seat during check-in without paying and then forcing you to stay long line at the Customer Service at the gate to get a boarding ticket with seat assigned is pathetic. Will never fly with United again!

The plane was so hot upon boarding. Their boarding process was so unnecessarily long. Service was subpar.

Everything from the price to online checkin and the flight being on time to the crew and food was very good. The comfort level is fine--the seats are very close to each other in Economy. But I guess you get what you pay for.

Horrible experience. I was apparently picked at random for a security screening - that was the most demeaning experience I have had in my life with a guy poking and prodding and having me take off my shoes, move up my pants so he could swab my legs - telling me I couldn't bring more than some quantity of cookies - I had 3 boxes of cookies in my luggage. In the end he did let me keep them but that was really uncalled for. Harrassment in the name of security.

They went out of their way. It was very clean and friendly.

Liked being hydrated. Carryon weight was limited for cold weather clothes that are heavy... could test to improve if possible.

Luggage did not make it to Miami still not today! Screen did not work for couple hours- got a bate of chocolate as a peaceful offering. Crew tentative, seats are getting smaller- isle seat arm rest foes not fold- problem getting other 2 passengers to go to the toilet without hitting themselves

The two meals were plentiful and excellent. The drinks were continuous. Thanks, Crew very polite; however a bit "hazard" at the end as they were rushing us off; to prepare for the cleaning team and next flight. Baggage from Berlin was delayed; however through the apps etc; they kept me aware and informed.(.did receive my baggage about 36 hours after my flight arrival). Good experience; thank you.

We had to move to terminal 5 for the next part of our trip. Very un-organized and difficult.

Pros: "Not much"
Cons: "During COVID there was little attempt to distance passengers during security checks, boarding and onboard. Crew did not inforce mask policy. Fellow passengers were inconsiderate, loud, littered just throwing food wrappers and trash on the ground - crew did nothing."

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Had a nice flight to London on BA will fly with them again in the future

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

Everything was quite easy from boarding to landing - the staff was great and service was excellent too!

In-flight entertainment was. It working for the entire 12 hour flight! Unbelievable! At least provide free wi-fi so people could use their phones.

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Our flight to Chicago O'Hare was delayed an hour, causing us to miss our connection to MSP and spend an extra 3 hours at O'Hare so we could board a plane with a damaged door and wait another 45 minutes or so. The crew was great, the food decent, The drinks were great: 2 glasses of a nice South African Shiraz, an ice cold can of Beck's Beer, and Dewar's White Label on the rocks.

A350 has great entertainment. Make sure to watch the plane's external tail and nose camera's on landing and take off. Seats were a little hard for a 10 hour flight. I am gluten intolerant, they had good alternative meals for me on the flight.

I got an email from Lufthansa saying that because the flight was full, I could check my cabin bag for free. When I tried to do that, I got charged $75 because it was 'overweight'. Other people who did not check their bags didn't get their bags (that were much larger than mine) weighed. Nor were they denied boarding. This is a scam, right? Expect to see this review EVERYWHERE!

Boarding was horrible. We were packed into a bus with few seats and made to stand for 10 to 15 minutes, then driven for 5 minutes on wild curves. Complementary food and drink was a tiny chocolate and a bottle of water. Seating was cramped. Aircraft had no video.

didn’t even get to go one of my returning flights cancelled and I wasn’t even in their system, vacation ruined thanks for nothing

Need more time for connecting flights in Munich Food seems worse now on Lufthansa Very uncomfortable seats

Better flight than mum to Frankfurt. But food was very mediocre.

Flight landed on time but land services kept us in the plane for 3 hours. I missed connecting flight.

Pros: "Because of our delay, we flew with Air Thai instead of Air China....much better airline"
Pros: "The crew was accommodating during the flight but spoke very little English and could not help with information on connecting flight."
Cons: "We missed our connecting flight due to a delay and the airline would not let us through because we could have made our second flight...."
Pros: "The price"
Cons: "Staff was not helpful and kind of rude unless you spoke their language. Food options were terrible and not very comfortable seat for 13+ hr flight."
Pros: "The food was good. It was nice that they supply wet hot towels before each meal. The seat was comfortable with the price I paid for. The rest room is nice and clean and quite spacious. The L’occitane toiletery bag was nice."
Cons: "It would be nice to supply mouthwash in the rest room. It would be nice to have a foot step at the bottom to open the trash container. The comforter is not washed and smells."
Cons: "Seats are narrow, leg room limited, and food is minimal."
Pros: "The crew was okay. The seating was great on all except for one leg."
Cons: "On one leg, it must have been an older plane, because the business class seats barely reclined."
Pros: "Boarding was a breeze, flight attendant onboard we attentive, choice of food orders at least two (in business class, can’t speak to first or main cabin passengers.) Flew from LA to Tokyo. Coming back from Hong Kong to LA. Fantastic flights, will use them again."
Pros: "The fare was good."
Cons: "More modern equipment. Tv screens. Movies. In flight magazines in English."
Cons: "Really old aircraft...please upgrade the video systems and make sure everyone has the same good optons"
Pros: "It doesn't have premium economy, the space is small."

Book cheap flights from Copenhagen to Illinois

Recent round-trip flight deals

5/10Fri
1 stopBritish Airways
15h 20mCPH-ORD
5/19Sun
1 stopBritish Airways
21h 55mORD-CPH
$376
5/10Fri
2 stopsBritish Airways
17h 24mCPH-ORD
5/19Sun
1 stopBritish Airways
16h 55mORD-CPH
$379
10/3Thu
2 stopsAmerican Airlines
16h 20mCPH-STL
10/6Sun
2 stopsAmerican Airlines
16h 04mSTL-CPH
$393
6/25Tue
1 stopFinnair
25h 20mCPH-ORD
7/16Tue
1 stopFinnair
18h 00mORD-CPH
$442
10/11Fri
1 stopKLM
11h 45mCPH-ORD
10/18Fri
1 stopKLM
14h 35mORD-CPH
$456
10/12Sat
2 stopsSWISS
23h 20mCPH-ORD
10/20Sun
2 stopsSWISS
15h 30mORD-CPH
$559
6/26Wed
2 stopsKLM
13h 35mCPH-ORD
7/16Tue
1 stopKLM
15h 00mORD-CPH
$613
6/27Thu
2 stopsFinnair
26h 40mCPH-ORD
7/12Fri
2 stopsFinnair
26h 40mORD-CPH
$616
6/26Wed
2 stopsAir France
15h 00mCPH-ORD
7/13Sat
1 stopAir France
10h 55mORD-CPH
$718
7/2Tue
1 stopSWISS
13h 15mCPH-ORD
7/12Fri
1 stopSWISS
11h 35mORD-CPH
$882

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Recent one-way flight deals

5/23Thu
2 stops
42h 17mCPH-MDW
$249
5/28Tue
2 stops
36h 02mCPH-ORD
$263
5/23Thu
2 stops
32h 45mCPH-ORD
$278
9/11Wed
1 stopFinnair
21h 50mCPH-ORD
$426
10/14Mon
2 stopsFinnair
26h 55mCPH-ORD
$506
5/22Wed
1 stopLufthansa
14h 10mCPH-STL
$549
8/7Wed
1 stopKLM
14h 02mCPH-ORD
$593
8/5Mon
1 stopKLM
12h 10mCPH-ORD
$640
5/22Wed
1 stopTurkish Airlines
16h 05mCPH-ORD
$677
10/14Mon
1 stopTurkish Airlines
16h 05mCPH-ORD
$803

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Last minute flights from Copenhagen to Illinois

Last minute flight, train and bus deals

5/2Thu
multi-stopFinnair
24h 00mCPH-ORD
5/3Fri
multi-stopFinnair
33h 18mORD-CPH
$1,017
5/2Thu
multi-stopBritish Airways
24h 50mCPH-ORD
5/3Fri
multi-stopBritish Airways
33h 00mORD-CPH
$1,039
5/2Thu
multi-stopBritish Airways
15h 52mCPH-ORD
5/3Fri
multi-stopBritish Airways
17h 08mORD-CPH
$1,068
5/2Thu
multi-stop
28h 03mCPH-ORD
5/3Fri
multi-stop
19h 35mORD-CPH
$1,114
5/2Thu
multi-stop
28h 03mCPH-ORD
5/3Fri
multi-stop
35h 20mORD-CPH
$1,128
5/1Wed
multi-stopTurkish Airlines
16h 05mCPH-ORD
5/3Fri
multi-stopTurkish Airlines
19h 30mORD-CPH
$1,420
5/1Wed
multi-stop
16h 05mCPH-ORD
5/3Fri
multi-stop
19h 35mORD-CPH
$1,713
5/1Wed
multi-stop
16h 05mCPH-ORD
5/3Fri
multi-stop
35h 20mORD-CPH
$1,740
5/2Thu
nonstopScandinavian Airlines
9h 10mCPH-ORD
5/3Fri
nonstopScandinavian Airlines
8h 30mORD-CPH
$1,819
5/2Thu
nonstop
9h 10mCPH-ORD
5/3Fri
multi-stop
33h 40mORD-CPH
$1,828

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Copenhagen - Illinois Flights

Departure:

Copenhagen (CPH)Denmark

Return flight deals:

Illinois - Copenhagen

Cabin classes:

$2,717
$1,052
$491