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Cologne

$456+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CGN
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from Illinois to Cologne

Keep the following information in mind while searching for Illinois to Cologne flight deals. Data was last updated septiembre 17, 2025.

Round-trip from

$565
(Ovago)

One-way from

$456
(British Airways)

Popular in

November

Cheapest in

February

Average price

$777
From Illinois to Cologne Köln/Bonn
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One-way flight from Illinois to Cologne Köln/Bonn
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Highest demand for flights based on searches. 5% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 septiembre 17, 2025.

This Expedia deal was found by Cheapflights users on 9/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/149:45 pmORD - CGN
1 stop11h 45mBritish Airways
mié. 12/2412:00 pmCGN - ORD
1 stop13h 45mBritish Airways
Deal found 9/16$573
This Ovago deal was found by Cheapflights users on 9/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/19:45 pmORD - CGN
1 stop29h 25mBritish Airways
lun. 12/85:15 pmCGN - ORD
1 stop27h 35mBritish Airways
Deal found 9/15$624
This Mytrip deal was found by Cheapflights users on 9/16. 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.
mar. 9/238:40 amORD - CGN
2 stops28h 55mMultiple Airlines
mar. 9/306:25 amCGN - ORD
2 stops34h 26mMultiple Airlines
Deal found 9/16$633
This British Airways deal was found by Cheapflights users on 9/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/124:55 pmORD - CGN
1 stop20h 30mBritish Airways
lun. 10/275:15 pmCGN - ORD
1 stop32h 30mBritish Airways
Deal found 9/15$638
This Mytrip deal was found by Cheapflights users on 9/16. 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.
jue. 11/203:35 pmORD - CGN
2 stops18h 45mMultiple Airlines
lun. 12/17:35 pmCGN - ORD
2 stops27h 45mMultiple Airlines
Deal found 9/16$656
This Ovago deal was found by Cheapflights users on 9/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/306:10 pmORD - CGN
1 stop15h 30mBritish Airways
jue. 11/65:05 pmCGN - ORD
1 stop27h 45mBritish Airways
Deal found 9/15$674
This British Airways deal was found by Cheapflights users on 9/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/139:15 pmORD - CGN
1 stop16h 15mBritish Airways
lun. 10/275:15 pmCGN - ORD
1 stop32h 30mBritish Airways
Deal found 9/15$683
This Mytrip deal was found by Cheapflights users on 9/16. 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.
lun. 11/37:20 pmORD - CGN
2 stops18h 55mMultiple Airlines
vie. 11/76:45 amCGN - ORD
2 stops17h 00mMultiple Airlines
Deal found 9/16$696
This Ovago deal was found by Cheapflights users on 9/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/169:15 pmORD - CGN
1 stop29h 15mBritish Airways
jue. 10/2310:15 amCGN - ORD
1 stop15h 00mBritish Airways
Deal found 9/16$710
This British Airways deal was found by Cheapflights users on 9/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/3112:51 pmSTL - CGN
2 stops21h 29mBritish Airways
vie. 11/74:35 pmCGN - STL
2 stops31h 05mBritish Airways
Deal found 9/16$838
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/3112:51 pmSTL - CGN
2 stops21h 29mMultiple Airlines
vie. 11/74:35 pmCGN - STL
3 stops24h 39mMultiple Airlines
Deal found 9/16$966
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/141:30 pmSTL - CGN
2 stops20h 35mUnited Airlines
mar. 10/216:50 amCGN - STL
2 stops15h 54mUnited Airlines
Deal found 9/16$990

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 septiembre 17, 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

mar. 11/18

9:45 pm-4:30 pm

1 stop11h 45m

Cologne Köln/Bonn

mar. 11/25

5:05 pm-1:50 pm

1 stop27h 45m

$565

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

lun. 12/1

9:45 pm-10:10 am

1 stop29h 25m

Cologne Köln/Bonn

lun. 12/8

5:15 pm-1:50 pm

1 stop27h 35m

$624

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

mar. 10/14

7:10 pm-9:10 am

1 stop31h 00m

Cologne Köln/Bonn

lun. 10/27

5:15 pm-2:50 pm

1 stop27h 35m

$638

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

dom. 10/12

4:55 pm-8:25 pm

1 stop20h 30m

Cologne Köln/Bonn

lun. 10/27

5:15 pm-7:45 pm

1 stop32h 30m

$638

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

dom. 10/12

9:15 pm-8:25 pm

1 stop16h 10m

Cologne Köln/Bonn

mar. 10/28

5:05 pm-7:45 pm

1 stop32h 40m

$713

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

mar. 10/14

7:10 pm-9:20 pm

1 stop19h 10m

Cologne Köln/Bonn

mar. 10/28

5:05 pm-7:45 pm

1 stop32h 40m

$713

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

sáb. 11/1

8:20 pm-10:05 pm

2 stops19h 45m

Cologne Köln/Bonn

sáb. 11/8

6:45 am-4:45 pm

2 stops17h 00m

$739

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

vie. 10/31

12:51 pm-4:20 pm

2 stops21h 29m

Cologne Köln/Bonn

vie. 11/7

4:35 pm-4:40 pm

2 stops31h 05m

$838

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

vie. 10/31

12:51 pm-4:20 pm

2 stops21h 29m

Cologne Köln/Bonn

vie. 11/7

4:35 pm-10:14 am

3 stops24h 39m

$966

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

mar. 10/14

1:30 pm-5:05 pm

2 stops20h 35m

Cologne Köln/Bonn

mar. 10/21

6:50 am-3:44 pm

2 stops15h 54m

$990

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 22 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, October is the cheapest month in which you can book a flight from Illinois to Cologne (average of $649). Flying from Illinois to Cologne in June is currently the most expensive (average of $1,249). 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 septiembre 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Cologne as you normally would.

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 and United Airlines fly from Illinois to Cologne in about 11h 45m. The time it takes to get you to your destination can typically vary by up to 8h 50m. 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, October is the cheapest month in which you can book a flight from Illinois to Cologne (average of $649). Flying from Illinois to Cologne in June is currently the most expensive (average of $1,249). 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$560Average$739FlexibilityNo cancel feeOn-time70%

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