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Cologne

$196+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CGN
Feb 10 — Feb 171
Tue 2/10
Tue 2/17
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 January 11, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$508
(Mytrip)

One-way from

$196
(oojo)

Popular in

November

Cheapest in

February
Provider with most accurate pricing for Chicago (CHI)-Cologne Köln/Bonn flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Cologne Köln/Bonn flights.
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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. 37% potential increase in price ($608 potential increase over avg. RT price).
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Cheapest flight prices on average. 29% potential price decrease ($231 potential savings vs. average RT price).
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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 January 11, 2026.

This Mytrip deal was found by Cheapflights users on 1/9. 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.
Sat 2/77:20 pmORD - CGN
2 stops20h 00mMultiple Airlines
Fri 2/1310:25 pmCGN - ORD
2 stops25h 20mMultiple Airlines
Deal found 1/9$508
This oojo deal was found by Cheapflights users on 1/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:38 amORD - CGN
2 stops21h 32mBritish Airways
Mon 3/25:15 pmCGN - ORD
1 stop32h 30mBritish Airways
Deal found 1/9$519
This oojo deal was found by Cheapflights users on 1/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/232:19 pmSTL - CGN
2 stops18h 51mBritish Airways
Mon 3/25:15 pmCGN - STL
2 stops31h 43mBritish Airways
Deal found 1/9$522
This oojo deal was found by Cheapflights users on 1/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:31 pmSTL - CGN
2 stops14h 59mBritish Airways
Sun 3/14:35 pmCGN - STL
2 stops35h 37mBritish Airways
Deal found 1/9$547
This AirNGo deal was found by Cheapflights users on 1/11. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/186:25 pmORD - CGN
1 stop15h 05mBritish Airways
Mon 2/25:15 pmCGN - ORD
1 stop27h 35mBritish Airways
Deal found 1/11$568
This oojo deal was found by Cheapflights users on 1/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/124:21 pmORD - CGN
2 stops17h 19mBritish Airways
Wed 3/185:15 pmCGN - ORD
2 stops34h 15mBritish Airways
Deal found 1/9$577
This United Airlines deal was found by Cheapflights users on 1/10. 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.
Sat 2/78:45 amSTL - CGN
2 stops20h 45mUnited Airlines
Sat 2/149:10 amCGN - STL
2 stops21h 49mUnited Airlines
Deal found 1/10$586
This FlightHub deal was found by Cheapflights users on 1/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1212:50 pmORD - CGN
1 stop22h 25mTurkish Airlines
Wed 3/1811:35 amCGN - ORD
1 stop29h 30mTurkish Airlines
Deal found 1/9$618
This Mytrip deal was found by Cheapflights users on 1/11. 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.
Sun 1/186:50 pmORD - CGN
2 stops23h 05mMultiple Airlines
Mon 2/26:10 pmCGN - ORD
2 stops26h 15mMultiple Airlines
Deal found 1/11$626
This Turkish Airlines deal was found by Cheapflights users on 1/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:50 pmORD - CGN
1 stop35h 20mTurkish Airlines
Mon 9/2810:25 amCGN - ORD
1 stop18h 40mTurkish Airlines
Deal found 1/11$633
This Gurufare deal was found by Cheapflights users on 1/9. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/81:27 pmSTL - CGN
2 stops22h 48mLufthansa
Mon 12/148:10 pmCGN - STL
2 stops48h 45mLufthansa
Deal found 1/9$674
This Booking.com deal was found by Cheapflights users on 1/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:05 pmSTL - CGN
2 stops36h 05mAir Canada
Wed 10/71:35 pmCGN - STL
2 stops59h 42mAir Canada
Deal found 1/9$715

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 January 11, 2026.
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

Mon 2/23

11:38 am-4:10 pm

2 stops21h 32m

Cologne Köln/Bonn

Mon 3/2

5:15 pm-6:45 pm

1 stop32h 30m

$519

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Mon 2/23

2:19 pm-4:10 pm

2 stops18h 51m

Cologne Köln/Bonn

Mon 3/2

5:15 pm-5:58 pm

2 stops31h 43m

$522

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Thu 3/5

4:13 pm-3:40 pm

2 stops16h 27m

Cologne Köln/Bonn

Mon 3/16

5:15 pm-11:04 pm

2 stops35h 49m

$547

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Tue 2/24

6:31 pm-4:30 pm

2 stops14h 59m

Cologne Köln/Bonn

Sun 3/1

4:35 pm-9:12 pm

2 stops35h 37m

$547

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Thu 3/12

4:21 pm-3:40 pm

2 stops17h 19m

Cologne Köln/Bonn

Wed 3/18

5:15 pm-9:30 pm

2 stops34h 15m

$577

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Sat 2/7

8:20 pm-5:15 pm

1 stop37h 55m

Cologne Köln/Bonn

Fri 2/13

6:15 pm-6:25 pm

1 stop31h 10m

$653

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Sat 2/7

7:20 pm-12:35 pm

3 stops34h 15m

Cologne Köln/Bonn

Fri 2/13

10:25 pm-4:45 pm

2 stops25h 20m

$680

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Sat 2/7

5:10 pm-3:40 pm

1 stop15h 30m

Cologne Köln/Bonn

Fri 2/13

4:35 pm-12:39 pm

2 stops51h 04m

$694

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Fri 1/30

11:50 am-10:35 am

1 stop15h 45m

Cologne Köln/Bonn

Tue 2/3

6:15 pm-10:05 am

1 stop22h 50m

$707

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

Fri 5/15

11:25 am-1:50 pm

1 stop19h 25m

Cologne Köln/Bonn

Tue 5/19

10:25 am-9:40 am

1 stop30h 15m

$746

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/10

Showing 1-10 of 19 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 $417). 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.

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 fly from Illinois to Cologne in about 21h 32m. The time it takes to get you to your destination can typically vary by up to . The distance between Illinois and Cologne is about 4244 mi.

  • 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 $417). 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 January 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$584Average$779FlexibilityNo cancel feeOn-time70%

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