Cheap Flights from Cologne (CGN) to Liege (LGG)

Popular airlines from Cologne - Bonn Airport (CGN) to Liege (LGG)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Frequently asked questions

How much does a flight from Cologne - Bonn Airport (CGN) to Liege Airport (LGG) cost?
Snag a cheap one-way flight or cheap return flight from Cologne - Bonn Airport (CGN) to Liege Airport (LGG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Cologne - Bonn Airport (CGN) to Liege Airport (LGG)?
The cheapest month to fly from CGN to LGG is , when demand is low. Off-peak season is typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Cologne - Bonn Airport (CGN) to Liege Airport (LGG)?
To find the cheapest airline that'll fly you from CGN to LGG, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Cologne - Bonn Airport (CGN) to Liege Airport (LGG)?
Direct flights from Cologne - Bonn Airport (CGN) to Liege Airport (LGG) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CGN to LGG?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the airline, season and other factors.*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 Liege Airport (LGG)?
To avoid potential delays on the Cologne - Bonn Airport (CGN) to Liege Airport (LGG) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**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 Liege Airport (LGG) last-minute?
Last-minute fares from CGN to LGG are usually more expensive. To lock in the cheapest rates, start searching for flights ahead of time. That said, if you're flexible with your travel dates, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book a CGN to LGG flight and hotel package?
Compared with arranging hotels and flights separately, booking a CGN to LGG flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place will take the stress out of planning your trip. Simply secure your flights and choose from our wide range of hotels, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Liege Airport (LGG)?
Typically, you're able to cancel or reschedule your CGN to LGG flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you need further details, go to our Customer Service portal.

Travel information

Origin airport
Cologne - Bonn
Destination airport
Liege
Distance
73 mi

Book with confidence

Cologne to Liege Flights

The cheapest times to fly from Cologne to Liege

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

 

The best time to book a flight from Cologne to Liege

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

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 Liege 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 Liege 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 Liege 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 Liege Flights

Explore a world of travel with Expedia

*Available to One Key members.