Illinois

$422+ Cheap flights from Cologne (CGN) to Illinois

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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — ORD
ene. 26 — feb. 21
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Cheap flight deals from Cologne to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Cologne (CGN) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 21, 2025.

Round-trip from

$486
(Billigflug)

One-way from

$422
(Kiwi.com)
From Cologne Köln/Bonn to Illinois
One-way flight from Cologne Köln/Bonn to Illinois

Find flight deals from Cologne to Illinois

Cheapest flights from Cologne to Illinois
Explore the most affordable flight options available from Cologne to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2025.

This Billigflug deal was found by Cheapflights users on 1/21. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/912:25 pmCGN - ORD
1 stop13h 20mMultiple Airlines
dom. 3/169:15 pmORD - CGN
1 stop31h 50mMultiple Airlines
Deal found 1/21$486
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/1911:10 amCGN - ORD
1 stop12h 50mBritish Airways
lun. 2/245:00 pmORD - CGN
1 stop11h 05mBritish Airways
Deal found 1/21$488
This American Airlines deal was found by Cheapflights users on 1/21. 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.
lun. 4/710:50 amCGN - ORD
1 stop12h 05mAmerican Airlines
lun. 4/147:15 pmORD - CGN
1 stop12h 05mAmerican Airlines
Deal found 1/21$514
This Expedia deal was found by Cheapflights users on 1/21. 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.
sáb. 2/86:30 pmCGN - STL
2 stops32h 00mBritish Airways
sáb. 3/110:49 amSTL - CGN
2 stops17h 16mBritish Airways
Deal found 1/21$523
This American Airlines deal was found by Cheapflights users on 1/21. 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.
sáb. 2/812:25 pmCGN - STL
3 stops18h 21mAmerican Airlines
sáb. 3/112:49 pmSTL - CGN
2 stops15h 16mAmerican Airlines
Deal found 1/21$556
This flugladen.de deal was found by Cheapflights users on 1/21. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/106:45 amCGN - ORD
2 stops19h 52mAir Canada
dom. 2/164:00 pmORD - CGN
2 stops13h 45mAir Canada
Deal found 1/21$576
This United Airlines deal was found by Cheapflights users on 1/21. 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.
vie. 3/71:25 pmCGN - ORD
3 stops27h 13mUnited Airlines
vie. 3/148:30 pmORD - CGN
2 stops38h 40mUnited Airlines
Deal found 1/21$625
This Lufthansa deal was found by Cheapflights users on 1/21. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/3012:55 pmCGN - ORD
1 stop12h 20mLufthansa
mié. 9/179:40 pmORD - CGN
1 stop11h 10mLufthansa
Deal found 1/21$659
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
dom. 4/67:10 pmCGN - ORD
1 stop21h 40mTurkish Airlines
mar. 4/157:50 pmORD - CGN
1 stop15h 25mTurkish Airlines
Deal found 1/21$720
This Austrian Airlines deal was found by Cheapflights users on 1/21. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/178:25 pmCGN - ORD
1 stop23h 55mAustrian Airlines
lun. 5/54:20 pmORD - CGN
1 stop33h 30mAustrian Airlines
Deal found 1/21$849
This SWISS deal was found by Cheapflights users on 1/21. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/186:20 amCGN - ORD
1 stop13h 25mSWISS
lun. 5/56:35 pmORD - CGN
1 stop15h 45mSWISS
Deal found 1/21$1,088
This TAP AIR PORTUGAL deal was found by Cheapflights users on 1/21. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/305:55 pmCGN - ORD
2 stops28h 35mTAP AIR PORTUGAL
lun. 2/312:51 pmORD - CGN
3 stops21h 19mTAP AIR PORTUGAL
Deal found 1/21$1,200

Find flights from Cologne to Illinois within your budget

Customize your flight search to find flights from Cologne to Illinois 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 enero 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

dom. 3/9

12:25 pm-7:45 pm

1 stop13h 20m

Chicago O'Hare Intl

dom. 3/16

9:15 pm-11:05 am

1 stop31h 50m

$486

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

mié. 2/19

11:10 am-5:00 pm

1 stop12h 50m

Chicago O'Hare Intl

lun. 2/24

5:00 pm-11:05 am

1 stop11h 05m

$488

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

lun. 4/7

10:50 am-3:55 pm

1 stop12h 05m

Chicago O'Hare Intl

lun. 4/14

7:15 pm-2:20 pm

1 stop12h 05m

$514

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

sáb. 2/8

6:30 pm-7:30 pm

2 stops32h 00m

Lambert-St Louis

sáb. 3/1

10:49 am-11:05 am

2 stops17h 16m

$523

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

sáb. 2/8

12:25 pm-11:46 pm

3 stops18h 21m

Lambert-St Louis

sáb. 3/1

12:49 pm-11:05 am

2 stops15h 16m

$556

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

lun. 2/10

6:45 am-7:37 pm

2 stops19h 52m

Chicago O'Hare Intl

dom. 2/16

4:00 pm-12:45 pm

2 stops13h 45m

$576

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

vie. 3/7

1:25 pm-9:38 am

3 stops27h 13m

Chicago O'Hare Intl

vie. 3/14

8:30 pm-5:10 pm

2 stops38h 40m

$625

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

lun. 2/10

1:25 pm-6:25 pm

1 stop12h 00m

Chicago O'Hare Intl

dom. 2/16

3:55 pm-11:25 pm

2 stops24h 30m

$714

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

dom. 4/6

7:10 pm-9:50 am

1 stop21h 40m

Chicago O'Hare Intl

mar. 4/15

7:50 pm-6:15 pm

1 stop15h 25m

$720

CologneChicago

CGN - ORD

CGNORD

Cologne Köln/Bonn

jue. 4/17

8:25 pm-1:20 pm

1 stop23h 55m

Chicago O'Hare Intl

lun. 5/5

4:20 pm-8:50 am

1 stop33h 30m

$849

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 16 results
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Best time to book a flight from Cologne to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Cologne 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.

Travel insights for flights from Cologne to Illinois

Get recent, data-driven insights about flights from Cologne to Illinois including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Cologne to Illinois (average of $245). Flying from Cologne to Illinois in March is currently the most expensive (average of $320). 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.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated enero 21, 2025.
Read through reviews of airlines operating flights from Cologne to Illinois, such as British Airways, American Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
7.6
Good
786 reviews

Comfort

7.3

Food

6.7

Overall

7.6

Entertainment

6.7

Crew

8.1

Boarding

7.6

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

7.6
Good
786 reviews
7.6
Good
786 reviews

Comfort

7.3

Food

6.7

Overall

7.6

Entertainment

6.7

Crew

8.1

Boarding

7.6

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

7.5
Good
1,600 reviews
7.6
Good
786 reviews

Comfort

7.3

Food

6.7

Overall

7.6

Entertainment

6.7

Crew

8.1

Boarding

7.6

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

7.4
Good
8,985 reviews
7.6
Good
786 reviews

Comfort

7.3

Food

6.7

Overall

7.6

Entertainment

6.7

Crew

8.1

Boarding

7.6

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

7.3
Good
3,931 reviews
7.6
Good
786 reviews

Comfort

7.3

Food

6.7

Overall

7.6

Entertainment

6.7

Crew

8.1

Boarding

7.6

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

7.2
Good
10,000 reviews
7.6
Good
786 reviews

Comfort

7.3

Food

6.7

Overall

7.6

Entertainment

6.7

Crew

8.1

Boarding

7.6

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Related info for your journey

Find useful and relevant information for your journey from Cologne to Illinois. 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 from for flights from Cologne to Illinois?

    Cologne Köln/Bonn (CGN), located 9.5 mi from the city center, is the airport you fly out of when you book flights from Cologne to Illinois.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cologne to Illinois 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 Cologne to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Cologne to Illinois (average of $245). Flying from Cologne to Illinois in March is currently the most expensive (average of $320). 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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Alternative routes for Cologne to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Cologne to Illinois

Discover the top airline that operate flights from Cologne to Illinois. 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 enero 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$627Average$892FlexibilityNo cancel feeOn-time76%
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