Find Cheap Flights from Chicago O'Hare International to Cologne Köln/Bonn (ORD - CGN)

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Good to Know

Average Price:
$1151
(avg. price over the last 2 weeks)
Good Deal:
$828
or less (round trip)

When to Book Flights from Chicago O'Hare International to Cologne Köln/Bonn

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $827 or less.
The cheapest flight from Chicago O'Hare International to Cologne Köln/Bonn was found 62 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 22% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Chicago O'Hare International to Cologne Köln/Bonn Flights

How long does a flight from Chicago O'Hare International to Cologne Köln/Bonn take?
An average nonstop flight takes 17h 50m, covering a distance of 4248 miles.
Which airlines provide the cheapest flights from Chicago O'Hare International to Cologne Köln/Bonn?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($579), Turkish Airlines ($640) and TAP AIR PORTUGAL ($1029).
Do I need a passport to fly between Chicago O'Hare International and Cologne Köln/Bonn?
Yes.
What’s the cheapest day of the week to fly Chicago O'Hare International to Cologne Köln/Bonn?
For Chicago O'Hare International to Cologne Köln/Bonn, Monday is the cheapest day to fly on average and Friday is the most expensive. Flying from Cologne Köln/Bonn back to Chicago O'Hare International, the best deals are generally found on Thursday, with Sunday being the most expensive.

Book cheap flights from Chicago O'Hare International to Cologne Köln/Bonn (round-trip)

Airports
Origin
Chicago
$579
only
$579
Destination
Cologne
$579
only
$579
Mon, Feb 5
ORD
CGN
54h 05m
Mon, Feb 12
CGN
ORD
38h 58m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Mar 18
ORD
CGN
30h 45m
Mon, Apr 9
CGN
ORD
33h 05m
Trip: 23 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16852 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
BOM
Excellent 9.0

Boarding at Ataturk Istanbul airport was happening randomly. They did not follow the group boarding like in IAD airport.

IST
ATH
Mediocre 2.0

Flight to Istanbul was fine. The flight back was a terrible experience! During our connecting flight in Athens our boarding passes wouldn't print at the self service computers and there was no one to help us so we had to go back out to the front desk. The airline representative was extremely rude. There was 5 employees standing around the computer with NO customers and when we asked if this was Turkish Airlines and if they could help, the woman (manager) responded "this WAS Turkish Airlines" as if they were done helping customers for the day (it was 9AM and our flight was leaving in 45 min). We explained that we couldn't print our passes and she ROLLED her eyes as if it was an inconvenience to help us. THEN on our flight from Istanbul to Chicago, a passenger died an hour into the flight and they placed the body on the seats behind us for over 10 hours! Nobody even told us what happened! We didn't know if they died from natural causes or if it was something else! They didn't offer to seat us somewhere else or even inform us they were placing the body there. We were completely shocked and uncomfortable the whole flight home. We couldn't eat or sleep. We're completely disgusted and scarred from this overall experience.

SFO
IST
Mediocre 2.0

Had ti spend while night in the Istambul airport. ....

No connection till following evning

ATL
IST
Excellent 10.0

Everything is just done way better than all the other airlines flying to Europe from America !!!

IST
SVX
Excellent 10.0

Стьюарды

Ничего

Sun, Jun 17
ORD
CGN
23h 53m
Mon, Jun 25
CGN
ORD
32h 30m
$1029
Trip: 9 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 2923 reviews
Overall
7.6
Boarding
7.5
Comfort
7.4
Crew
8.0
Entertainment
6.8
Food
7.2
MIA
LIS
Mediocre 2.0

You can't reach them via phone and they are horrifically slow and difficult to get ahold of.

LIS
MIA
Good 7.0

The food was good. I have Celiac Disease and they accommodated my gluten free necessities with GF bread!! Wow.

The entertainment for an international flight (9 hours) was horrendous. The tiny TVs were actually fuzzy and it is set up so that you cannot actually choose your movie. It is like watching TV where you may tune in to a movie 20 minutes into it playing instead of starting whatever movie you want from the beginning. To make matters worse, there was no plug-in in case you wanted to watch entertainment of your own on phone/iPad.

JFK
LIS
Mediocre 2.0

Cancelled our flight, at 4am. Did not give a reasonX

OPO
EWR
Mediocre 3.3

1) I tried several times while traveling but was unable to figure out how to choose a vegetarian option for the flight. When I called customer service, after a long hold time, the woman I finally spoke to told me it was too late to order vegetarian and refused to help me. I have never flown another airline (Air India, Turkish Air, United, American, China Southern, etc., etc.) that did not make this easy to choose during booking or check-in and that did not already have a standard ovo-lacto vegetarian option on the regular menu. Vegetarians practice for all sorts of reasons, including religion and health needs. It's unacceptable to make it so difficult to meet your meal needs while trapped on a plane for nine hours. 2) The check-in agent did not know the rule about all remaining seats being opened for passenger choice three hours before booking and insisted we had to pay to get aisle seats despite one of us having a health problem necessitating her standing up and walking every 45 minutes. Then another agent told us we couldn't choose seats for free for our Porto to Newark flight when we check in for our Madrid-Porto flight because it wasn't technically three hours before the Porto-Newark departure. But how were we supposed to choose seats for the Porto-Newark flight three hours in advance if we are in an airplane flying to Porto at that time? This makes no sense. Seats should be opened for every leg of a same-day journey at the same time. The agents were unhelpful and unsympathetic. 3) This was an old plane without options to choose a film or show to watch. Instead, passengers could flip through a few channels and hope to find something of interest that was already playing -- there was no way to begin a film or show from the beginning if you landed on it in the middle of its running time. I cannot recommend TAP Portugal to any of my friends, family, or colleagues after this experience.

EWR
LIS
Okay 5.0

Poor entertainment

Sun, Apr 8
ORD
CGN
17h 50m
Tue, Apr 17
CGN
ORD
51h 05m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 5
ORD
CGN
54h 05m
Mon, Mar 12
CGN
ORD
43h 41m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 10
ORD
CGN
28h 25m
Tue, May 22
CGN
ORD
38h 35m
Trip: 13 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16852 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
BOM
Excellent 9.0

Boarding at Ataturk Istanbul airport was happening randomly. They did not follow the group boarding like in IAD airport.

LHE
IST
Good 7.3

Low engine noise and vibrations. Temperatures were comfortable

IST
BOS
Good 7.3

Low engine noise and vibrations. Temperatures were comfortable

Seat back stuck and wouldn't recline. 11 hours sitting upright not comfortable at all. Noisy children

SFO
IST
Mediocre 2.0

Had ti spend while night in the Istambul airport. ....

No connection till following evning

TIA
IST
Okay 4.0

I am handicap and had to take my carry on baggage off the plane with the help of other passengers so I decided to take a different airline back to my surprise the help me with my luggage and carry on and from the moment I arrived at the gate toll I got out of the airport in jfk I was not allowed to pick ip my baggage they did everything I would like a call back from you 2036757227

Sat, Jan 6
ORD
CGN
54h 03m
Fri, Jan 26
CGN
ORD
33h 33m
Trip: 21 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jun 6
ORD
CGN
21h 11m
Tue, Jun 19
CGN
ORD
51h 05m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 26
ORD
CGN
24h 00m
Fri, Jun 1
CGN
ORD
22h 55m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Dec 28
ORD
CGN
33h 40m
Sun, Jan 14
CGN
ORD
31h 35m
$1325
Trip: 18 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16852 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
SFO
Good 6.6

The Bus carried all passengers to the plane . There was No help or assistance available for Handicapped passengers We had to climb the stairs. The person in front of me had Only one leg to stand on and was using crutches to climb the stairs This was like a survival of the fittest test and a horrible Experience. The Airline should provide assistance at the Boarding stairs.

DYU
IST
Mediocre 2.0

Flight was delayed by 5 hours and customer service in Istanbul consists of assholes who don't know much about customer service. They gave me their printed policy on flight delays and refused to do what the document requires them to do. I was one of the well treated one! They are bastards.

LHE
IST
Good 7.3

Low engine noise and vibrations. Temperatures were comfortable

IST
BOM
Excellent 9.0

Boarding at Ataturk Istanbul airport was happening randomly. They did not follow the group boarding like in IAD airport.

IST
SVX
Excellent 10.0

Стьюарды

Ничего

Fri, Dec 15
ORD
CGN
30h 45m
Wed, Jan 3
CGN
ORD
36h 55m
$1992
Trip: 20 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16852 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
SVX
Excellent 10.0

Стьюарды

Ничего

DYU
IST
Mediocre 2.0

Flight was delayed by 5 hours and customer service in Istanbul consists of assholes who don't know much about customer service. They gave me their printed policy on flight delays and refused to do what the document requires them to do. I was one of the well treated one! They are bastards.

IST
DUB
Good 7.6

Crew was great. Good selection of movies too.

The flight itself was fine, but what has been a horrible pain has been trying to get refunded for an accidental double booking.

SFO
IST
Mediocre 2.0

Had ti spend while night in the Istambul airport. ....

No connection till following evning

TIA
IST
Okay 4.0

I am handicap and had to take my carry on baggage off the plane with the help of other passengers so I decided to take a different airline back to my surprise the help me with my luggage and carry on and from the moment I arrived at the gate toll I got out of the airport in jfk I was not allowed to pick ip my baggage they did everything I would like a call back from you 2036757227

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.