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Cologne

$533+ Cheap flights from Illinois to Cologne (CGN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CGN
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
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Cheap flight deals from Illinois to Cologne

Cheapest flights from Illinois to Cologne
Explore the most affordable flight options available from Illinois to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

This KAYAK deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:45 pmORD - CGN
1 stop29h 20mBritish Airways
Sat 12/135:10 pmCGN - ORD
1 stop27h 40mBritish Airways
Deal found 12/6$873
This Kiwi.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:40 pmORD - CGN
1 stop19h 20mMultiple Airlines
Mon 1/127:35 pmCGN - ORD
2 stops50h 25mMultiple Airlines
Deal found 12/7$1,045
This Trip.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1212:50 pmORD - CGN
2 stops16h 20mMultiple Airlines
Fri 1/98:40 amCGN - ORD
2 stops33h 26mMultiple Airlines
Deal found 12/7$1,050
This Kiwi.com deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:50 pmORD - CGN
2 stops23h 05mMultiple Airlines
Mon 12/156:00 amCGN - ORD
1 stop18h 55mMultiple Airlines
Deal found 12/6$1,086
This Kiwi.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/143:50 pmORD - CGN
1 stop11h 35mMultiple Airlines
Mon 1/127:35 pmCGN - ORD
2 stops50h 25mMultiple Airlines
Deal found 12/7$1,095
This Kiwi.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:50 pmORD - CGN
2 stops33h 10mMultiple Airlines
Mon 1/126:00 amCGN - ORD
1 stop20h 15mMultiple Airlines
Deal found 12/7$1,116
This Kiwi.com deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/78:25 pmORD - CGN
1 stop21h 30mMultiple Airlines
Sun 12/1412:00 pmCGN - ORD
2 stops33h 57mMultiple Airlines
Deal found 12/6$1,126
This Kiwi.com deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:50 pmORD - CGN
2 stops23h 05mMultiple Airlines
Sat 12/136:10 pmCGN - ORD
1 stop27h 35mMultiple Airlines
Deal found 12/6$1,130
This Kiwi.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:50 pmORD - CGN
2 stops20h 55mMultiple Airlines
Mon 1/126:00 amCGN - ORD
1 stop20h 15mMultiple Airlines
Deal found 12/7$1,132
This Kiwi.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:40 pmORD - CGN
2 stops31h 45mMultiple Airlines
Mon 1/126:00 amCGN - ORD
1 stop20h 15mMultiple Airlines
Deal found 12/7$1,171
This Kiwi.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:40 pmORD - CGN
1 stop19h 20mMultiple Airlines
Sun 1/119:30 amCGN - ORD
2 stops38h 15mMultiple Airlines
Deal found 12/7$1,180
This Mytrip deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:05 pmSTL - CGN
2 stops21h 50mMultiple Airlines
Sat 12/136:10 pmCGN - STL
2 stops26h 45mMultiple Airlines
Deal found 12/7$1,875

Find flight deals from Illinois to Cologne

Keep the following information in mind while searching for Illinois to Cologne flight deals. Data was last updated December 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$571
(oojo)

One-way from

$533
(flugladen.de)

Popular in

November

Cheapest in

February

Average price

$697
Provider with most accurate pricing for Chicago (CHI)-Cologne Köln/Bonn flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Cologne Köln/Bonn flights.
Search Deals
From Illinois to Cologne Köln/Bonn
Search Deals
One-way flight from Illinois to Cologne Köln/Bonn
Search Deals
Highest demand for flights based on searches. 38% potential increase in price ($618 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 27% potential price decrease ($211 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Cologne 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, Cheapflights users made 2,558,603 searches. Data last updated December 9, 2025.
Use the filters below to find and compare flights from Illinois to Cologne that are best for you.

Fly from

Illinois

Fly to

Cologne

Route

Depart

Return

Price

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Fri 1/23

9:45 pm-4:20 pm

1 stop11h 35m

Cologne Köln/Bonn

Fri 1/30

4:35 pm-5:47 pm

2 stops32h 12m

$661

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Fri 1/23

6:30 pm-6:00 pm

2 stops16h 30m

Cologne Köln/Bonn

Fri 1/30

11:55 am-10:42 pm

3 stops41h 47m

$668

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Thu 1/29

8:20 pm-5:15 pm

1 stop37h 55m

Cologne Köln/Bonn

Mon 2/2

6:15 pm-6:25 pm

1 stop31h 10m

$715

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Thu 1/29

9:45 pm-3:40 pm

1 stop10h 55m

Cologne Köln/Bonn

Mon 2/2

5:15 pm-1:50 pm

1 stop27h 35m

$722

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Fri 1/30

4:49 pm-5:10 pm

2 stops17h 21m

Cologne Köln/Bonn

Tue 2/3

6:45 am-9:13 pm

2 stops21h 28m

$785

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Tue 2/24

11:39 am-12:35 pm

2 stops17h 56m

Cologne Köln/Bonn

Sun 3/1

9:10 am-8:23 pm

2 stops18h 13m

$790

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Thu 3/5

6:00 am-3:40 pm

2 stops26h 40m

Cologne Köln/Bonn

Mon 3/16

5:15 pm-11:48 pm

2 stops36h 33m

$820

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Thu 1/29

3:55 pm-12:10 pm

2 stops13h 15m

Cologne Köln/Bonn

Mon 2/2

6:55 pm-5:48 pm

2 stops29h 53m

$1,042

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Thu 3/5

4:05 pm-12:10 pm

2 stops13h 05m

Cologne Köln/Bonn

Mon 3/16

8:40 am-9:00 pm

3 stops18h 20m

$1,047

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Fri 12/12

12:50 pm-12:10 pm

2 stops16h 20m

Cologne Köln/Bonn

Fri 1/9

8:40 am-11:06 am

2 stops33h 26m

$1,050

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 21 results
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Best time to book a flight from Illinois to Cologne

Have a flexible travel schedule? Discover the best time to fly to Cologne from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Cologne

What is the cheapest month to book a flight from Illinois to Cologne?

Currently, March is the cheapest month in which you can book a flight from Illinois to Cologne (average of $379). Flying from Illinois to Cologne in June is currently the most expensive (average of $738). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to CGN?

Find hourly flight availability from Illinois to Cologne. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 9, 2025.

When flying from Illinois to Cologne, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 46% versus a flight in the afternoon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Cologne. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Cologne from Illinois?

    Located just 9.5 mi from the city center, Cologne Köln/Bonn (CGN) is the airport most travelers will use when flying to Cologne from Illinois.

  • How long is the flight from Illinois to Cologne?

    Airlines like British Airways, Turkish Airlines, and United Airlines fly from Illinois to Cologne in about 11h 35m. The time it takes to get you to your destination can typically vary by up to 26h 20m. The distance between Illinois and Cologne is about 4244 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Illinois to Cologne that include hotel bookings?

    Yes. In addition to deals on Illinois to Cologne flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Cologne?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Cologne.

  • Can I find deals for business class flights from Illinois to Cologne?

    Yes. Cheapflights offers flight deals from Illinois to Cologne by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Cologne?

    Currently, March is the cheapest month in which you can book a flight from Illinois to Cologne (average of $379). Flying from Illinois to Cologne in June is currently the most expensive (average of $738). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Illinois to Cologne

Discover the top airline that operate flights from Illinois to Cologne. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$584Average$748FlexibilityNo cancel feeOn-time70%

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