$423 Cheap Flights from Chicago (ORD) to Cologne (CGN)

View $423 flight on Mon, Mar 9, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN)

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Cheap Flights from Chicago to Cologne (ORD-CGN)

Prices were available within the past 7 days and start at $423 for one-way flights and $527 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sun, Feb 1 - Wed, Feb 11
ORD
Chicago
CGN
Cologne
$527 Roundtrip, found 4 days ago
$527
Roundtrip
found 4 days ago
Select British Airways flight, departing Sun, Feb 1 from Chicago to Cologne, returning Wed, Feb 11, priced at $527 found 4 days ago
British Airways
Wed, Feb 11 - Wed, Feb 18
ORD
Chicago
CGN
Cologne
$538 Roundtrip, found 2 days ago
$538
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Feb 11 from Chicago to Cologne, returning Wed, Feb 18, priced at $538 found 2 days ago
British Airways
Mon, Mar 9 - Mon, Mar 23
ORD
Chicago
CGN
Cologne
$551 Roundtrip, found 20 hours ago
$551
Roundtrip
found 20 hours ago
Select British Airways flight, departing Mon, Mar 9 from Chicago to Cologne, returning Mon, Mar 23, priced at $551 found 20 hours ago
British Airways
Mon, Jan 19 - Wed, Feb 4
ORD
Chicago
CGN
Cologne
$555 Roundtrip, found 5 days ago
$555
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, Jan 19 from Chicago to Cologne, returning Wed, Feb 4, priced at $555 found 5 days ago
British Airways
Mon, Feb 9 - Mon, Mar 23
ORD
Chicago
CGN
Cologne
$563 Roundtrip, found 2 days ago
$563
Roundtrip
found 2 days ago
Select British Airways flight, departing Mon, Feb 9 from Chicago to Cologne, returning Mon, Mar 23, priced at $563 found 2 days ago
British Airways
Wed, Mar 18 - Wed, Apr 1
ORD
Chicago
CGN
Cologne
$577 Roundtrip, found 6 days ago
$577
Roundtrip
found 6 days ago
Select British Airways flight, departing Wed, Mar 18 from Chicago to Cologne, returning Wed, Apr 1, priced at $577 found 6 days ago
Turkish Airlines
Thu, Mar 12 - Sat, Mar 14
ORD
Chicago
CGN
Cologne
$657 Roundtrip, found 18 hours ago
$657
Roundtrip
found 18 hours ago
Select Turkish Airlines flight, departing Thu, Mar 12 from Chicago to Cologne, returning Sat, Mar 14, priced at $657 found 18 hours ago
American Airlines
Fri, Dec 5 - Sat, Dec 13
ORD
Chicago
CGN
Cologne
$734 Roundtrip, found 6 days ago
$734
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Dec 5 from Chicago to Cologne, returning Sat, Dec 13, priced at $734 found 6 days ago
Air Canada
Tue, Dec 30 - Wed, Jan 21
ORD
Chicago
CGN
Cologne
$824 Roundtrip, found 5 days ago
$824
Roundtrip
found 5 days ago
Select Air Canada flight, departing Tue, Dec 30 from Chicago to Cologne, returning Wed, Jan 21, priced at $824 found 5 days ago
Austrian Airlines
Wed, Mar 18 - Tue, Mar 24
ORD
Chicago
CGN
Cologne
$868 Roundtrip, found 1 day ago
$868
Roundtrip
found 1 day ago
Select Austrian Airlines flight, departing Wed, Mar 18 from Chicago to Cologne, returning Tue, Mar 24, priced at $868 found 1 day ago

Alternative airports near Cologne

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cologne - Bonn CGN. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $779
CGN
Cologne - Bonn
CheapestClosest
Average driving time to city center14 min
Flights from $779
Flights from Chicago (ORD) to Cologne (CGN)
Origin airport
O'Hare Intl.
Destination airport
Cologne - Bonn
Airlines serving
Air Canada, American Airlines, Austrian Airlines, British Airways, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$527
Distance
4245 mi

Chicago to Cologne Flights

The cheapest times to fly from Chicago to Cologne

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Cologne are during the month of February. You can find some of the cheapest flights from Chicago to Cologne with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Cologne

Sunday is one of the best days to book for cheap flights from Chicago to Cologne: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Cologne

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Cologne in 2025. You can also book with separate airlines for your outbound and return journeys, from $423 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Cologne flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Cologne airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN) cost?
Grab a cheap one-way flight from $423 or cheap return flight from $527 from O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN)?
Flying in February is a good way to save, as it's the cheapest month for flights between ORD and CGN. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest ORD to CGN flight.
How many flights per day from O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN)?
Direct flights from O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ORD to CGN?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can vary based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN)?
To touch down at Cologne - Bonn Airport (CGN) without delays, book a flight that takes off from O'Hare Intl. Airport (ORD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN) last-minute?
Holding off until just before your departure to book your flight from ORD to CGN generally means paying more. While you may find some last-minute offers, they aren't always guaranteed. Keep your travel plans flexible to maximize your chances of getting a bargain.
Is it cheaper to book an ORD to CGN flight and hotel package?
Securing an ORD to CGN flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our impressive range of stays and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Cologne - Bonn Airport (CGN)?
If you reserved your ORD to CGN flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.