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$515 Cheap Flights from Cologne (CGN) to Milwaukee (MKE)

View $515 flight on Sun, Dec 20, 2026Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to General Mitchell Intl. Airport (MKE)

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Cheap Flights from Cologne to Milwaukee (CGN-MKE)

Prices were available within the past 7 days and start at $515 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) cost?
You can find cheap one-way flights from $515 and cheap return flights Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) with Expedia. One-way flights generally range between $1142 and $3407. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
The cheapest month to fly from CGN to MKE is when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
Enter CGN to MKE and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
Lufthansa, United and Swiss International Air Lines are just some of the carriers that fly from Cologne (CGN) to Milwaukee, WI (MKE). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
To find a cheap flight from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
The earliest flight from Cologne - Bonn Airport (CGN) to General Mitchell International Airport (MKE) usually departs at around 6:45 AM, operated by Eurowings, Swiss International Air Lines, and United. This seasonal service is available in March, making it a convenient option for early travelers heading to Milwaukee. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
a Monday typically has the most flights from Cologne - Bonn (CGN) to General Mitchell Intl. (MKE), with approximately 14 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Eurowings and British Airways.
What are the most popular departure times for flights from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
The most popular departure times for flights from Cologne (CGN) to Milwaukee (MKE) are in the early morning, from 6am to 9am. This time window accounts for around 40% of total traffic. Many major carriers, including Eurowings, United Airlines and Eurowings, offer flights during this period. This timing works well because it allows travelers to arrive in Milwaukee with a full day ahead of them.
How long does it take to fly from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
Flights from CGN to MKE with one stop typically take around 18 hours, covering approximately 4,199 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
Business class seats are offered on the CGN to MKE route with British Airways.
How do I earn miles on a Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) flight with Expedia?
It's easy to earn miles on a Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Milwaukee from Cologne - Bonn (CGN)?
If you're planning to travel to Milwaukee from Cologne - Bonn (CGN), you can fly typically into General Mitchell Intl. (MKE) Some flights may connect through major hubs like Franz Josef Strauss Intl. (MUC), ZRH (ZRH), Heathrow (LHR) before reaching Milwaukee. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) at the last minute?
Typically, booking a last minute flight from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) flight and hotel package?
Securing a Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) Milwaukee Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.)?
If you booked your Cologne (CGN-Cologne - Bonn) to Milwaukee, WI (MKE-General Mitchell Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Cologne - Bonn
Destination airport
General Mitchell Intl.
Distance
4198 mi

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Cologne to Milwaukee Flights

The cheapest times to fly from Cologne to Milwaukee

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 Cologne to Milwaukee are during the month of . You can find some of the cheapest flights from Cologne to Milwaukee with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cologne to Milwaukee

Sunday is one of the best days to book for cheap flights from Cologne to Milwaukee: 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 Cologne to Milwaukee

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 Cologne to Milwaukee in 2026. You can also book with separate airlines for your outbound and return journeys, from $515 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 Cologne to Milwaukee 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 Cologne to Milwaukee 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.

 

Cologne to Milwaukee Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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