What airlines fly to Cologne?

Lufthansa, United Airlines and Aer Lingus are the top three most popular airlines that fly to Cologne from Illinois according to our data. Lufthansa is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Cologne. Keep in mind that there are 12 different airlines that fly to Cologne on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Illinois to Cologne Köln/Bonn?

British Airways, Turkish Airlines, and American Airlines are the most popular carriers operating from Illinois to Cologne Köln/Bonn

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

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

How many operators does momondo search for flights from Illinois to Cologne Köln/Bonn Airport?

As of November 2025, there is 1 operator available to choose from for flights from Illinois to Cologne Köln/Bonn Airport.

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

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 Illinois to Cologne Köln/Bonn Airport.

What documentation or ID do you need to fly to Cologne Köln/Bonn Airport?

The travel and health documents you'll need for your trip to Cologne Köln/Bonn Airport 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 Cologne Köln/Bonn Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$245 Cheap Flights from Illinois to Cologne in 2025/26

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Find the cheapest flights from Illinois to Cologne

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:50 am - 10:35 amORD-CGN

15h 45m1 stop

11:35 am - 10:05 amCGN-ORD

29h 30m1 stop

$650Turkish Airlines

Find Deal

ven, nov 28 - ven, dic 5

11:50 am - 5:15 pmORD-CGN

22h 25m1 stop

6:15 pm - 10:05 amCGN-ORD

22h 50m1 stop

$652Turkish Airlines

Find Deal

dom, nov 30 - mar, dic 16

2:19 pm - 4:30 pmSTL-CGN

19h 11m2 stops

4:35 pm - 6:03 pmCGN-STL

32h 28m2 stops

$656British Airways

Find Deal

mar, feb 24 - dom, mar 1

8:35 pm - 9:45 amORD-CGN

30h 10m1 stop

11:20 am - 6:45 pmCGN-ORD

14h 25m1 stop

$675British Airways

Find Deal

ven, dic 5 - ven, dic 12

4:05 pm - 12:10 pmSTL-CGN

37h 05m2 stops

6:45 am - 3:29 pmCGN-STL

39h 44m2 stops

$777Air Canada

Find Deal

lun, dic 1 - lun, dic 8

6:30 pm - 9:30 pmORD-CGN

20h 00m2 stops

10:35 am - 3:25 pmCGN-ORD

35h 50m2 stops

$785Multiple Airlines

Find Deal

gio, dic 4 - gio, dic 11

6:43 pm - 5:10 pmSTL-CGN

15h 27m2 stops

8:20 pm - 9:40 pmCGN-STL

32h 20m2 stops

$799Lufthansa

Find Deal

lun, dic 1 - lun, dic 8

11:39 am - 12:35 pmSTL-CGN

17h 56m2 stops

1:15 pm - 10:59 pmCGN-STL

16h 44m2 stops

$816Lufthansa

Find Deal

mar, feb 24 - dom, mar 1

12:50 pm - 11:10 amORD-CGN

15h 20m2 stops

6:50 am - 4:05 pmCGN-ORD

16h 15m2 stops

$830Air Canada

Find Deal

mar, apr 14 - mar, mag 12

6:50 pm - 11:35 pmORD-CGN

21h 45m3 stops

12:55 am - 8:05 pmCGN-ORD

26h 10m3 stops

$866Multiple Airlines

Find Deal

gio, dic 4 - mer, dic 10

Turkish Airlines flights from Illinois to Cologne

Our best Turkish Airlines deals on Illinois to Cologne flight tickets

Turkish Airlines

Nov 28

ORD11:50 amChicago O'Hare Intl

15h 45m

1 stop

CGN10:35 amCologne Köln/Bonn

Dec 5

CGN11:35 amCologne Köln/Bonn

29h 30m

1 stop

ORD10:05 amChicago O'Hare Intl

$650

Find similar

Turkish Airlines

Nov 30

ORD11:50 amChicago O'Hare Intl

22h 25m

1 stop

CGN5:15 pmCologne Köln/Bonn

Dec 16

CGN6:15 pmCologne Köln/Bonn

22h 50m

1 stop

ORD10:05 amChicago O'Hare Intl

$652

Find similar

Turkish Airlines

Dec 12

ORD11:50 amChicago O'Hare Intl

15h 45m

1 stop

CGN10:35 amCologne Köln/Bonn

Dec 16

CGN11:35 amCologne Köln/Bonn

29h 30m

1 stop

ORD10:05 amChicago O'Hare Intl

$1,004

Find similar

British Airways flights from Illinois to Cologne

Our best British Airways deals on Illinois to Cologne flight tickets

British Airways

Feb 24

STL2:19 pmLambert-St Louis

19h 11m

2 stops

CGN4:30 pmCologne Köln/Bonn

Mar 1

CGN4:35 pmCologne Köln/Bonn

32h 28m

2 stops

STL6:03 pmLambert-St Louis

$656

Find similar

British Airways

Dec 5

ORD8:35 pmChicago O'Hare Intl

30h 10m

1 stop

CGN9:45 amCologne Köln/Bonn

Dec 12

CGN11:20 amCologne Köln/Bonn

14h 25m

1 stop

ORD6:45 pmChicago O'Hare Intl

$675

Find similar

British Airways

Dec 5

ORD4:04 pmChicago O'Hare Intl

17h 16m

2 stops

CGN4:20 pmCologne Köln/Bonn

Dec 12

CGN11:20 amCologne Köln/Bonn

27h 01m

2 stops

ORD7:21 amChicago O'Hare Intl

$700

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

ven 11/28

11:50 am-10:35 am

1 stop15h 45m

Cologne Köln/Bonn

ven 12/5

11:35 am-10:05 am

1 stop29h 30m

$650

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

dom 11/30

11:50 am-5:15 pm

1 stop22h 25m

Cologne Köln/Bonn

mar 12/16

6:15 pm-10:05 am

1 stop22h 50m

$652

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

mar 2/24

2:19 pm-4:30 pm

2 stops19h 11m

Cologne Köln/Bonn

dom 3/1

4:35 pm-6:03 pm

2 stops32h 28m

$656

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

ven 12/5

8:35 pm-9:45 am

1 stop30h 10m

Cologne Köln/Bonn

ven 12/12

11:20 am-6:45 pm

1 stop14h 25m

$675

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

lun 12/1

4:05 pm-12:10 pm

2 stops37h 05m

Cologne Köln/Bonn

lun 12/8

6:45 am-3:29 pm

2 stops39h 44m

$777

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

gio 12/4

6:30 pm-9:30 pm

2 stops20h 00m

Cologne Köln/Bonn

gio 12/11

10:35 am-3:25 pm

2 stops35h 50m

$785

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

lun 12/1

6:43 pm-5:10 pm

2 stops15h 27m

Cologne Köln/Bonn

lun 12/8

8:20 pm-9:40 pm

2 stops32h 20m

$799

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

mar 2/24

11:39 am-12:35 pm

2 stops17h 56m

Cologne Köln/Bonn

dom 3/1

1:15 pm-10:59 pm

2 stops16h 44m

$816

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

mar 4/14

12:50 pm-11:10 am

2 stops15h 20m

Cologne Köln/Bonn

mar 5/12

6:50 am-4:05 pm

2 stops16h 15m

$830

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

gio 12/4

6:50 pm-11:35 pm

3 stops21h 45m

Cologne Köln/Bonn

mer 12/10

12:55 am-8:05 pm

3 stops26h 10m

$866

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Cologne

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

Prices

Airlines

What is the cheapest month to fly to Cologne?

The cheapest month to fly to Cologne from Illinois is in February. Flight prices, which tend to average around $579, are often lower during this time because this is during the off-season. If you are unable to visit Cologne during the month of February, then departing from Illinois during the month March is also very affordable. Most momondo users find prices during this month for around $643.

What is the cheapest day to depart on your flight to Cologne?

The cheapest day to depart from Illinois to Cologne is on a Thursday when prices can be found for as low as $872. On the other hand, Monday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,547.

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

The cheapest time of day to fly to Cologne is in the morning when flights can be purchased for as low as $879. In the afternoon is when there is more demand to fly to Cologne, so prices are often more expensive at around $1,181 per ticket.

Cheap Illinois to Cologne flight deals and tips

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

Direct flights	None

There are no direct flights from Illinois to Cologne. There are no popular flight routes from Illinois to Cologne.

Search flight deals

When did momondo last update prices for flights from Illinois to Cologne Köln/Bonn Airport?
Prices for flights from Illinois to Cologne Köln/Bonn Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Cologne Köln/Bonn Airport?
As of November 2025, there is 1 operator available to choose from for flights from Illinois to Cologne Köln/Bonn Airport.
How old do you have to be to fly from Illinois to Cologne Köln/Bonn Airport?
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 Illinois to Cologne Köln/Bonn Airport.
What documentation or ID do you need to fly to Cologne Köln/Bonn Airport?
The travel and health documents you'll need for your trip to Cologne Köln/Bonn Airport 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 Cologne Köln/Bonn Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Cologne

Compare and see reviews for airlines that fly from Illinois to Cologne with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $560	Free Cancellation	Rating 6.7 7,500 reviews		Search British Airways flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Cologne from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cologne from Illinois.

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

Price alerts on flights to Cologne from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.