Cheap Flights from Cologne (CGN) to Aachen (AAH)

Popular airlines from Cologne - Bonn Airport (CGN) to Aachen (AAH-Merzbruck)

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Flights from Cologne (CGN) to Aachen (AAH)
Origin airport
Cologne - Bonn
Destination airport
Merzbruck
Distance
40 mi

Cologne to Aachen Flights

The cheapest times to fly from Cologne to Aachen

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

 

The best time to book a flight from Cologne to Aachen

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

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 Aachen in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Aachen 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 Aachen 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 Cologne - Bonn Airport (CGN) to Aachen (AAH-Merzbruck) cost?
Discover the latest flight deals from CGN to AAH by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CGN to AAH?
The cheapest flights from CGN to AAH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CGN to AAH?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CGN to AAH. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Cologne - Bonn Airport (CGN) to Aachen (AAH-Merzbruck)?
You'll need to catch a flight with a layover if you're traveling from Cologne - Bonn Airport (CGN) to Aachen (AAH-Merzbruck). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from CGN to AAH?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cologne - Bonn Airport (CGN) to Aachen (AAH-Merzbruck)?
To touch down at Aachen (AAH-Merzbruck) without delays, book a flight that leaves from Cologne - Bonn Airport (CGN) 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 Cologne - Bonn Airport (CGN) to Aachen (AAH-Merzbruck) last-minute?
Booking your plane ticket from CGN to AAH just before your trip is typically more expensive. But if you're flexible with your travel times and dates, you could land a cheap last-minute fare.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Aachen (AAH-Merzbruck)?
If you reserved your CGN to AAH flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

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*Available to One Key members.