Cheap Flights to Aachen: Aachen Flight Deals

View €21 flight on Mon, 23 Mar 2026Opens in a new window

Popular airlines to Aachen

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 15% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Aachen

Prices were available within the past 7 days and start at €21 for one-way flights and €40 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Tue, 15 Sept - Tue, 22 Sept
NOC
Knock
CGN
Cologne
€50 Return, found 2 days ago
€50
Return
found 2 days ago
Select Ryanair flight, departing Tue, 15 Sept from Knock to Cologne, returning Tue, 22 Sept, priced at €50 found 2 days ago
Ryanair
Tue, 16 Jun - Sat, 20 Jun
NOC
Knock
CGN
Cologne
€53 Return, found 3 days ago
€53
Return
found 3 days ago
Select Ryanair flight, departing Tue, 16 Jun from Knock to Cologne, returning Sat, 20 Jun, priced at €53 found 3 days ago
Ryanair
Tue, 16 Jun - Tue, 30 Jun
NOC
Knock
CGN
Cologne
€54 Return, found 2 days ago
€54
Return
found 2 days ago
Select Ryanair flight, departing Tue, 16 Jun from Knock to Cologne, returning Tue, 30 Jun, priced at €54 found 2 days ago
Ryanair
Sat, 6 Jun - Sat, 13 Jun
NOC
Knock
CGN
Cologne
€55 Return, found 1 day ago
€55
Return
found 1 day ago
Select Ryanair flight, departing Sat, 6 Jun from Knock to Cologne, returning Sat, 13 Jun, priced at €55 found 1 day ago
British Airways
Sat, 7 Feb - Sat, 14 Feb
NOC
Knock
CGN
Cologne
€540 Return, found 1 day ago
€540
Return
found 1 day ago
Select British Airways flight, departing Sat, 7 Feb from Knock to Cologne, returning Sat, 14 Feb, priced at €540 found 1 day ago
Aer Lingus
Sat, 18 Jul - Thu, 23 Jul
NOC
Knock
QKL
Cologne
€4,026 Return, found 7 hours ago
€4,026
Return
found 7 hours ago
Select Aer Lingus flight, departing Sat, 18 Jul from Knock to Cologne, returning Thu, 23 Jul, priced at €4,026 found 7 hours ago

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Aachen. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Aachen. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Aachen, or are just on the lookout for the best flights to Aachen, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Aachen to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Frequently asked questions

What is the name of Aachen's airport?
Aachen is served by more than one airport, but most visitors choose to touch down at Duesseldorf Intl. Airport (DUS).
What airport is best to fly into Aachen?
There are two main airports that service Aachen. DUS is around 72 kilometres from the downtown area, while Maastricht - Aachen Airport (MST) is around 27 kilometres away. After you take a look at prices and figure out where you're staying, you'll better know which one you should fly into.
How many airlines fly to Aachen?
Aachen is serviced by 58 air carriers from at least 101 airports around the world.
Which airlines fly to Aachen?
Lufthansa, Eurowings and Lufthansa City Airlines are the most frequent fliers to Aachen. The highest number of flights originate in Munich, with Lufthansa offering the most services on this route.
How many nonstop flights are there to Aachen?
Flying to a new place is much more fun when there aren't any stopovers to worry about. If you're jetting off to Aachen, the fantastic news is that there are roughly 991 nonstop flights operating each week.
Where are the most popular flights to Aachen departing from?
The most popular flights to Aachen leave from Munich, Istanbul and London airports.
How long is the flight to Aachen Airport?
Where you depart from determines how much of the in-flight entertainment you'll get to enjoy. From Munich to Aachen, the average flight time is 1 hour and 10 minutes. From Istanbul it's roughly 3 hours and 25 minutes, and from London it's 1 hour and 22 minutes.
How to book the cheapest flight to Aachen?
We all know those jet-setters who somehow land incredibly cheap fares whenever they fly. Would you like to know how to do it for your Aachen holiday? Don't leave it until the last moment to lock in your flight. Another easy way to get a bargain is to research all options. If where you're headed has several airports, don't forget to research the cost of flying into a less busy terminal. And finally, remember that the early bird catches the worm. Familiarise yourself with airfare costs and be ready to buy your ticket as soon as you spot an unbeatable bargain. The sweetest deals don't last long.
Do you have any tips for my flight to Aachen?
We've rounded up all the info you need to make your flight a stress-free experience. Follow our insider tips and you'll be cruising through the airport and enjoying Aachen before you know it. What to pack in your hand luggage:

  • The secret to having a worry-free flight experience is to plan ahead. So, let's start with the essentials: passport, travel documents, credit cards and daily medications. Next, bring on board items that'll help keep you busy, like some electronic devices or a good read. It's also wise to pack your chargers, a quality neck pillow and a pair of earphones. Finally, be sure to toss in toiletries like a toothbrush, lip balm and a clean T-shirt.

Do not pack the following items in your hand luggage:

  • While the list of restricted items can differ between air carriers, the general guide to follow is avoid carrying anything flammable, sharp or explosive. This includes things like screwdrivers, pocket knives, aerosol cans and bleaching agents. Sporting equipment like golf clubs, and objects that could harm passengers, such as swords and batons, are also banned from the cabin.

What to wear on a flight:

  • The aisles of an airplane aren't the place for a fashion parade. Wear layers and choose shoes that are flat, enclosed and easy to remove.
  • Deep vein thrombosis (DVT) is a risk on long-haul flights. It results from blood clotting due to inactivity and poor circulation, so do some gentle leg and foot exercises in your seat and consider wearing compression tights or socks.

How to get through airport security fast when flying to Aachen?
A little pre-planning before your flight will help make your trip to Aachen easy and painless. Below you'll find some handy hints for a speedy journey past security:

  • Security personnel first need to know that you have a valid passport and boarding pass before you're allowed to proceed any further. Have them ready for inspection.
  • Next up is the X-ray machine. Remove anything metal on you that is likely to set off the alarm. This includes items like headphones or earphones, as well as your coat or jacket. They'll need to be placed on the conveyor belt for screening.
  • For just a few minutes, you'll need to unplug from the digital world. Your laptop, phone and any other electronic devices will also need to be sent through the scanner.
  • Remove liquids and gels from your hand luggage. They usually need to be sent through the X-ray scanner separately. Each item should be no larger than 3.4 ounces (100 millilitres) and everything must fit inside a single quart-size (one litre), clear zip-lock bag.
  • Choosing your footwear wisely can save you several valuable minutes. Hiking boots are often required to be removed and separately scanned. Slip-on shoes usually aren't.
  • Sharp items like knives are prohibited in the cabin. They'll be confiscated at security, so pack them in your checked bags.

Flights to Aachen information
Destination airport
Cologne - Bonn
Destination airport IATA code
CGN
Destination city name
Cologne
Return price
€110

Trending flights to Aachen

Prices were available within the past 7 days and start at €21 for one-way flights and €40 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Mon, 9 Feb - Fri, 27 Feb
DUB
Dublin
CGN
Cologne
€40 Return, found 7 hours ago
€40
Return
found 7 hours ago
Select Ryanair flight, departing Mon, 9 Feb from Dublin to Cologne, returning Fri, 27 Feb, priced at €40 found 7 hours ago

Explore a world of travel with Expedia

*Available to Expedia members.