$433 Cheap Flights from Cologne (CGN) to Chicago (ORD)

You can find cheap one-way flights from $433 and cheap return flights $707 Cologne (CGN-Cologne - Bonn) to Chicago, IL (ORD-O'Hare Intl.) with Expedia. Return flights typically cost between $595 and $7078. 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 Chicago, IL (ORD-O'Hare 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.

The cheapest month to fly from CGN to ORD is September 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.

Enter CGN to ORD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Aer Lingus is one of the cheapest airlines offering connecting flights from Cologne - Bonn (CGN) to Chicago (ORD), with return tickets starting from around $614. 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.

To find a cheap flight from Cologne (CGN-Cologne - Bonn) to Chicago, IL (ORD-O'Hare 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.

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.

The earliest flight from Cologne-Bonn Airport (CGN) to O'Hare International Airport (ORD) typically departs at 4:20 AM. This seasonal service is operated by Lufthansa and United, allowing you to start your journey to Chicago bright and early. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

The busiest day for flights from Cologne - Bonn (CGN) to O'Hare Intl. (ORD) is a Monday, with around 30 flights. This gives you plenty of options for your travel plans. Major airlines on this route include Lufthansa, Eurowings, and British Airways.

The most popular departure times for flights from Cologne (CGN) to Chicago (ORD) are in the morning, from 6am to 9am. About 57% of passengers prefer this time window. Many major carriers, including Lufthansa and Eurowings, offer flights during this window. This timing is favored as it allows you to arrive in Chicago with a full day ahead of you.

A flight from CGN to ORD with a layover takes around 12 hours, with the route covering approximately 4,246 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

Business class is available on flights from CGN to ORD. Airlines that offer business class service on this route include:

• British Airways
• Turkish Airlines
• Eurowings
• Lufthansa

It's easy to earn miles on a Cologne (CGN-Cologne - Bonn) to Chicago, IL (ORD-O'Hare 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.

From Cologne - Bonn (CGN), you can fly into O'Hare Intl. (ORD) to reach Chicago. Some flights may connect through major hubs like Heathrow (LHR), Franz Josef Strauss Intl. (MUC), ZRH (ZRH) before reaching Chicago. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Cologne (CGN-Cologne - Bonn) to Chicago, IL (ORD-O'Hare 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.

Securing a Cologne (CGN-Cologne - Bonn) to Chicago, IL (ORD-O'Hare Intl.) Chicago 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.

If you booked your Cologne (CGN-Cologne - Bonn) to Chicago, IL (ORD-O'Hare 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.