Cheap Flights from Copenhagen Airport to Illinois from £371 Return

Flight deals from Copenhagen Airport to Illinois

Looking for a cheap last-minute deal or the best return flight from Copenhagen Airport to Illinois? If you want to travel next month, return fares start from £400. Find the lowest prices on one-way and return tickets right here.

Chicago.£371 per passenger.Departing Wed, 3 Jun, returning Fri, 14 Aug.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Copenhagen on Wed, 3 Jun, arriving in Chicago O'Hare International.Inbound indirect flight with Finnair, departs from Chicago O'Hare International on Fri, 14 Aug, arriving in Copenhagen.Price includes taxes and charges.From £371, select.

Peoria.£605 per passenger.Departing Mon, 4 May, returning Fri, 8 May.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Copenhagen on Mon, 4 May, arriving in Greater Peoria.Inbound indirect flight with Lufthansa, departs from Greater Peoria on Fri, 8 May, arriving in Copenhagen.Price includes taxes and charges.From £605, select.

Moline.£821 per passenger.Departing Tue, 5 May, returning Sat, 9 May.Return flight with Icelandair and Allegiant Air.Outbound indirect flight with Icelandair, departs from Copenhagen on Tue, 5 May, arriving in Moline.Inbound indirect flight with Allegiant Air, departs from Moline on Sat, 9 May, arriving in Copenhagen.Price includes taxes and charges.From £821, select.

Show more deals

Flying from Copenhagen Airport to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	£371
Cheapest month to fly	June
Average flight time	9 hrs, 16 mins
Average flights per week	25
Most popular airline	Delta

How to find cheap flights from Copenhagen Airport to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Copenhagen Airport to Illinois. Other savvy travellers recently found return flights from £371 and one-way tickets from £270. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in June

The cheapest time to fly from Copenhagen Airport to Illinois is currently June.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Copenhagen Airport to anywhere you choose in Illinois.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Copenhagen Airport to your chosen airport in Illinois go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Illinois Airport to Illinois flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from Copenhagen Airport to Illinois?

Yes - direct flights currently operate from Copenhagen Airport to Chicago O'Hare International Airport in Illinois.

What is the average price of a flight from Copenhagen Airport to Illinois?

We looked at all of the upcoming return flights from Copenhagen Airport to Illinois we could find over the next 12 months. It looks like £371 is the best price. This is good, compared to the average Illinois ticket price of £599.

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

The cheapest month to fly from Copenhagen Airport to Moline Airport is currently May.
The cheapest month to fly from Copenhagen Airport to Chicago O'Hare International Airport is currently June.
And the cheapest month to fly from Copenhagen Airport to Greater Peoria Airport is usually May.

Which upcoming date is cheapest to fly from Copenhagen Airport to Illinois on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Copenhagen Airport to Illinois on Wednesday, 3 June 2026.

If I'm flying from Copenhagen Airport, where in Illinois is cheapest to fly into?

If you're flying from Copenhagen, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International.