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Cologne

$388+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CGN
apr 7 — apr 141
lun 4/7
lun 4/14
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 aprile 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$684
(Booking.com)

One-way from

$388
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,030
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. 15% potential increase in price ($168 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in April 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 aprile 2, 2025.

This Booking.com deal was found by Cheapflights users on 3/31. 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.
mer 5/149:15 pmORD - CGN
1 stop16h 45mBritish Airways
mer 5/2110:15 pmCGN - ORD
1 stop20h 30mBritish Airways
Deal found 3/31$684
This American Airlines deal was found by Cheapflights users on 4/1. 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.
mer 4/3010:20 pmORD - CGN
1 stop15h 40mMultiple Airlines
mer 5/710:15 pmCGN - ORD
1 stop22h 40mMultiple Airlines
Deal found 4/1$690
This oojo deal was found by Cheapflights users on 4/1. 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.
ven 9/57:50 pmORD - CGN
1 stop30h 40mTurkish Airlines
ven 9/1910:30 amCGN - ORD
1 stop30h 10mTurkish Airlines
Deal found 4/1$712
This American Airlines deal was found by Cheapflights users on 3/31. 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.
mar 7/110:30 pmORD - CGN
1 stop15h 55mAmerican Airlines
mar 7/293:30 pmCGN - ORD
1 stop31h 25mAmerican Airlines
Deal found 3/31$759
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 4/291:55 pmORD - CGN
2 stops14h 15mAir Canada
mar 5/67:40 amCGN - ORD
2 stops14h 07mAir Canada
Deal found 4/1$1,228
This United Airlines deal was found by Cheapflights users on 4/1. 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.
ven 9/55:55 pmORD - CGN
2 stops16h 40mUnited Airlines
ven 9/1912:55 pmCGN - ORD
3 stops17h 47mUnited Airlines
Deal found 4/1$1,266

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 aprile 2, 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

mer 5/14

9:15 pm-9:00 pm

1 stop16h 45m

Cologne Köln/Bonn

mer 5/21

10:15 pm-11:45 am

1 stop20h 30m

$684

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

mer 4/30

10:20 pm-9:00 pm

1 stop15h 40m

Cologne Köln/Bonn

mer 5/7

10:15 pm-1:55 pm

1 stop22h 40m

$690

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

ven 9/5

7:50 pm-9:30 am

1 stop30h 40m

Cologne Köln/Bonn

ven 9/19

10:30 am-9:40 am

1 stop30h 10m

$712

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

mar 7/1

10:30 pm-9:25 pm

1 stop15h 55m

Cologne Köln/Bonn

mar 7/29

3:30 pm-3:55 pm

1 stop31h 25m

$759

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

mar 4/29

1:55 pm-11:10 am

2 stops14h 15m

Cologne Köln/Bonn

mar 5/6

7:40 am-2:47 pm

2 stops14h 07m

$1,228

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

ven 9/5

5:55 pm-5:35 pm

2 stops16h 40m

Cologne Köln/Bonn

ven 9/19

12:55 pm-11:42 pm

3 stops17h 47m

$1,266

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

lun 4/7

7:30 pm-11:20 pm

3 stops20h 50m

$388

ChicagoCologne

ORD - CGN

ORDCGN

Chicago O'Hare Intl

gio 7/17

7:10 pm-9:10 pm

1 stop19h 00m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

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 $1,478). 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 aprile 2, 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.

Rainfall in Cologne by month

Plan your trip to Cologne by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Cologne ranges from 2.0 - 3.5 inches per month. June is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Cologne when rainfall is around 2.0 in.

Temperature in Cologne by month

Plan your trip to Cologne by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Cologne, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Cologne

Get insights into the airlines that provide service to Cologne. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cologne. Reviews last updated aprile 2, 2025.
United Airlines
7.4
Good
8,615 reviews

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,615 reviews
United Airlines
7.4
Good
8,615 reviews

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Turkish Airlines
7.3
Good
3,748 reviews
United Airlines
7.4
Good
8,615 reviews

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,615 reviews

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
9,022 reviews
United Airlines
7.4
Good
8,615 reviews

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.6
Okay
6,715 reviews
United Airlines
7.4
Good
8,615 reviews

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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 $1,478). 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 3 airlines flying from Illinois to Cologne

Discover the top 3 airlines 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 aprile 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$560Average$734FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$714Average$1,296FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$860Average$1,422FlexibilityNo cancel feeOn-time76%

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