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Cheap flights from Cologne to Illinois from $502

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cologne to Illinois departing on 3/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
6:45 am - 8:10 pmCGN-ORD
20h 25m2 stops
Air Canada Logo
12:50 pm - 12:10 pmORD-CGN
16h 20m2 stops
$565Air Canada
Find Deal
Sat, Dec 6 - Fri, Dec 12
Austrian Airlines Logo
8:20 pm - 2:00 pmCGN-ORD
24h 40m1 stop
Austrian Airlines Logo
4:20 pm - 7:35 pmORD-CGN
20h 15m1 stop
$566Austrian Airlines
Find Deal
Sun, Nov 16 - Mon, Nov 24
Multiple Airlines Logo
8:20 pm - 2:00 pmCGN-ORD
24h 40m1 stop
Multiple Airlines Logo
6:00 pm - 6:55 pmORD-CGN
17h 55m1 stop
$569Multiple Airlines
Find Deal
Sun, Nov 16 - Mon, Nov 24
Austrian Airlines Logo
8:20 pm - 2:00 pmCGN-ORD
24h 40m1 stop
Austrian Airlines Logo
4:20 pm - 7:35 pmORD-CGN
20h 15m1 stop
$571Austrian Airlines
Find Deal
Sun, Nov 16 - Mon, Nov 24
United Airlines Logo
1:35 pm - 6:25 pmCGN-ORD
11h 50m1 stop
United Airlines Logo
6:00 pm - 12:50 pmORD-CGN
11h 50m1 stop
$583United Airlines
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Thu, Nov 13 - Mon, Jan 12
United Airlines Logo
1:35 pm - 11:43 pmCGN-ORD
17h 08m2 stops
United Airlines Logo
6:00 pm - 12:50 pmORD-CGN
11h 50m1 stop
$587United Airlines
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Thu, Nov 13 - Mon, Dec 29
British Airways Logo
5:05 pm - 1:50 pmCGN-ORD
27h 45m1 stop
British Airways Logo
9:45 pm - 4:10 pmORD-CGN
11h 25m1 stop
$616British Airways
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Thu, Feb 19 - Mon, Feb 23
Lufthansa Logo
9:10 am - 6:25 pmCGN-ORD
16h 15m1 stop
Lufthansa Logo
9:50 pm - 5:10 pmORD-CGN
12h 20m1 stop
$618Lufthansa
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Sat, Nov 22 - Sat, Nov 29
British Airways Logo
5:05 pm - 1:50 pmCGN-ORD
27h 45m1 stop
British Airways Logo
9:45 pm - 4:10 pmORD-CGN
11h 25m1 stop
$636British Airways
Find Deal
Thu, Feb 19 - Mon, Feb 23
Lufthansa Logo
1:35 pm - 6:25 pmCGN-ORD
11h 50m1 stop
Lufthansa Logo
6:00 pm - 12:35 pmORD-CGN
11h 35m1 stop
$649Lufthansa
Find Deal
Tue, Nov 25 - Tue, Dec 2

United Airlines flights from Cologne to Illinois

Our best United Airlines deals on Cologne to Illinois flight tickets
United Airlines
Nov 9
CGN9:10 amCologne Köln/Bonn
12h 00m
1 stop
ORD2:10 pmChicago O'Hare Intl
Nov 17
ORD9:50 pmChicago O'Hare Intl
12h 20m
1 stop
CGN5:10 pmCologne Köln/Bonn
$582
Find similar
United Airlines
Nov 13
CGN1:35 pmCologne Köln/Bonn
11h 50m
1 stop
ORD6:25 pmChicago O'Hare Intl
Jan 12
ORD6:00 pmChicago O'Hare Intl
11h 50m
1 stop
CGN12:50 pmCologne Köln/Bonn
$583
Find similar
United Airlines
Nov 13
CGN1:35 pmCologne Köln/Bonn
17h 08m
2 stops
ORD11:43 pmChicago O'Hare Intl
Dec 29
ORD6:00 pmChicago O'Hare Intl
11h 50m
1 stop
CGN12:50 pmCologne Köln/Bonn
$587
Find similar

British Airways flights from Cologne to Illinois

Our best British Airways deals on Cologne to Illinois flight tickets
British Airways
Feb 19
CGN5:05 pmCologne Köln/Bonn
27h 45m
1 stop
ORD1:50 pmChicago O'Hare Intl
Feb 23
ORD9:45 pmChicago O'Hare Intl
11h 25m
1 stop
CGN4:10 pmCologne Köln/Bonn
$616
Find similar
British Airways
Feb 19
CGN5:05 pmCologne Köln/Bonn
27h 45m
1 stop
ORD1:50 pmChicago O'Hare Intl
Feb 23
ORD9:45 pmChicago O'Hare Intl
11h 25m
1 stop
CGN4:10 pmCologne Köln/Bonn
$636
Find similar
British Airways
Apr 20
CGN9:15 pmCologne Köln/Bonn
28h 00m
1 stop
ORD6:15 pmChicago O'Hare Intl
May 5
ORD9:15 pmChicago O'Hare Intl
17h 10m
1 stop
CGN9:25 pmCologne Köln/Bonn
$638
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Cologne to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 31, 2025.
Use the filters below to find and compare flights from Cologne to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Sat 12/6

6:45 am-8:10 pm

2 stops20h 25m

Chicago O'Hare Intl

Fri 12/12

12:50 pm-12:10 pm

2 stops16h 20m

$565

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Sun 11/16

8:20 pm-2:00 pm

1 stop24h 40m

Chicago O'Hare Intl

Mon 11/24

4:20 pm-7:35 pm

1 stop20h 15m

$566

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Sun 11/16

8:20 pm-2:00 pm

1 stop24h 40m

Chicago O'Hare Intl

Mon 11/24

6:00 pm-6:55 pm

1 stop17h 55m

$569

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Sun 11/16

8:20 pm-2:00 pm

1 stop24h 40m

Chicago O'Hare Intl

Mon 11/24

4:20 pm-7:35 pm

1 stop20h 15m

$571

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Thu 11/13

1:35 pm-6:25 pm

1 stop11h 50m

Chicago O'Hare Intl

Mon 1/12

6:00 pm-12:50 pm

1 stop11h 50m

$583

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Thu 11/13

1:35 pm-11:43 pm

2 stops17h 08m

Chicago O'Hare Intl

Mon 12/29

6:00 pm-12:50 pm

1 stop11h 50m

$587

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Thu 2/19

5:05 pm-1:50 pm

1 stop27h 45m

Chicago O'Hare Intl

Mon 2/23

9:45 pm-4:10 pm

1 stop11h 25m

$616

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Sat 11/22

9:10 am-6:25 pm

1 stop16h 15m

Chicago O'Hare Intl

Sat 11/29

9:50 pm-5:10 pm

1 stop12h 20m

$618

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Thu 2/19

5:05 pm-1:50 pm

1 stop27h 45m

Chicago O'Hare Intl

Mon 2/23

9:45 pm-4:10 pm

1 stop11h 25m

$636

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

Tue 11/25

1:35 pm-6:25 pm

1 stop11h 50m

Chicago O'Hare Intl

Tue 12/2

6:00 pm-12:35 pm

1 stop11h 35m

$649

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Cologne to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Cologne to Illinois during this time can be as low as $884. Flights at noon are often more expensive with an average ticket price of $918.

Can stopping save me money on Cologne to Illinois flights?

You could potentially save up to 20% on your flight if you consider stops on a Cologne to Illinois flight.

Cheap Cologne to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cologne to Illinois

Direct flights

None
There are no direct flights from Cologne to Illinois. There are no popular flight routes from Cologne to Illinois.
Search flight deals

  • When did momondo last update prices for flights from Cologne Köln/Bonn Airport to Illinois?

    Prices for flights from Cologne Köln/Bonn Airport to Illinois are refreshed on a daily basis.

  • How old do you have to be to fly from Cologne Köln/Bonn Airport to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cologne Köln/Bonn Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Cologne to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Cologne to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Cologne to Illinois with flexible booking policies on momondo?

All flight searches from Cologne to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Cologne to Illinois?

Once you have performed a search for Cologne to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Cologne to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Cologne and alert you when they change.

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