How long is the flight from Green Bay to Cologne?

For as low as $1,382, United Airlines can have you in Cologne from Green Bay in 22h 06m. There are 4133 mi between Green Bay and Cologne.

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.

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).

What is the cheapest time of day to fly from GRB to CGN?

When flying from Green Bay to Cologne, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Green Bay to Cologne that include hotel bookings?

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

How can I find direct flights from Green Bay to Cologne?

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

Can I find deals for business class flights from Green Bay to Cologne?

Yes. Cheapflights offers flight deals from Green Bay 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.

$789+ Flights from Green Bay to Cologne

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Cheap flight deals from Green Bay to Cologne

Cheapest flights from Green Bay to Cologne
Explore the most affordable flight options available from Green Bay to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Thu 2/55:24 pm

GRB

CGN

2 stops16h 51m

United Airlines

Sun 2/89:10 am

CGN

GRB

2 stops14h 37m

United Airlines

Deal found 1/28

$789

Fri 1/302:39 pm

GRB

CGN

2 stops14h 31m

United Airlines

Mon 2/29:10 am

CGN

GRB

2 stops19h 21m

United Airlines

Deal found 1/26

$1,077

Fri 3/132:54 pm

GRB

CGN

2 stops22h 06m

United Airlines

Fri 3/209:10 am

CGN

GRB

2 stops15h 42m

United Airlines

Deal found 1/27

$1,382

Fri 3/136:38 pm

GRB

CGN

3 stops18h 22m

Multiple Airlines

Fri 3/207:05 am

CGN

GRB

3 stops40h 56m

Multiple Airlines

Deal found 1/27

$1,560

Best flights from Green Bay to Cologne
Discover carefully curated flight deals from Green Bay to Cologne that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 29, 2026.

Fri 3/132:54 pm

GRB

CGN

2 stops22h 06m

United Airlines

Fri 3/209:10 am

CGN

GRB

2 stops15h 42m

United Airlines

Deal found 1/27

$1,382

Fri 3/136:38 pm

GRB

CGN

3 stops18h 22m

Multiple Airlines

Fri 3/207:05 am

CGN

GRB

3 stops40h 56m

Multiple Airlines

Deal found 1/27

$1,560

Last-minute flights from Green Bay to Cologne
Discover last-minute flight deals from Green Bay to Cologne. Data last updated January 29, 2026 and is based on user searches.

Fri 1/302:39 pm

GRB

CGN

2 stops14h 31m

United Airlines

Mon 2/29:10 am

CGN

GRB

2 stops19h 21m

United Airlines

Deal found 1/26

$1,077

Thu 2/55:24 pm

GRB

CGN

2 stops16h 51m

United Airlines

Sun 2/89:10 am

CGN

GRB

2 stops14h 37m

United Airlines

Deal found 1/28

$789

Find flight deals from Green Bay to Cologne

Round-trip from	$1,382 (United Airlines)

From Green Bay Austin-Straubel to Cologne Köln/Bonn

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Green BayCologne

GRB - CGN

GRBCGN

Green Bay Austin-Straubel

Fri 3/13

2:54 pm-7:00 pm

2 stops22h 06m

Cologne Köln/Bonn

Fri 3/20

9:10 am-6:52 pm

2 stops15h 42m

$1,382

Green BayCologne

GRB - CGN

GRBCGN

Green Bay Austin-Straubel

Fri 3/13

6:38 pm-7:00 pm

3 stops18h 22m

Cologne Köln/Bonn

Fri 3/20

7:05 am-6:01 pm

3 stops40h 56m

$1,560

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Best time to book a flight from Green Bay to Cologne

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

Related info for your journey

How long is the flight from Green Bay to Cologne?
For as low as $1,382, United Airlines can have you in Cologne from Green Bay in 22h 06m. There are 4133 mi between Green Bay and Cologne.
Can I find deals for flights from Green Bay to Cologne that include hotel bookings?
Yes. In addition to deals on Green Bay to Cologne flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Green Bay to Cologne?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to Cologne.
Can I find deals for business class flights from Green Bay to Cologne?
Yes. Cheapflights offers flight deals from Green Bay 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.

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$789+ Cheap flights from Green Bay (GRB) to Cologne (CGN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Green Bay to Cologne with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Green Bay to Cologne

Cheapest flights from Green Bay to CologneExplore the most affordable flight options available from Green Bay to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Explore the most affordable flight options available from Green Bay to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Find flight deals from Green Bay to Cologne

Round-trip from

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Best time to book a flight from Green Bay to Cologne

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Related info for your journey

Find useful and relevant information for your journey from Green Bay to Cologne. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Green Bay to Cologne?

Can I find deals for flights from Green Bay to Cologne that include hotel bookings?

How can I find direct flights from Green Bay to Cologne?

Can I find deals for business class flights from Green Bay to Cologne?

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Cheapest flights from Green Bay to Cologne
Explore the most affordable flight options available from Green Bay to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.