$360 Cheap Flights from Cologne (CGN) to Frankfurt (FRA)

View $360 flight on Sun, Sep 7, 2025Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to Frankfurt Airport (FRA)

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Cheap Flights from Cologne to Frankfurt (CGN-FRA)

Prices were available within the past 7 days and start at $360 for one-way flights and $3,945 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sat, Sep 20 - Tue, Sep 30
CGN
Cologne
FRA
Frankfurt
$3,945 Roundtrip, found 3 days ago
$3,945
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Sat, Sep 20 from Cologne to Frankfurt, returning Tue, Sep 30, priced at $3,945 found 3 days ago
Flights from Cologne (CGN) to Frankfurt (FRA)
Origin airport
Cologne - Bonn
Destination airport
Frankfurt Intl.
Roundtrip price
$3,945
Distance
86 mi

Cologne to Frankfurt Flights

The cheapest times to fly from Cologne to Frankfurt

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

 

The best time to book a flight from Cologne to Frankfurt

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

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 Frankfurt in 2025. You can also book with separate airlines for your outbound and return journeys, from $360 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 Frankfurt 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 Frankfurt 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 Frankfurt Intl. Airport (FRA) cost?
Get a cheap one-way flight from $360 or cheap return flight from $3,945 from Cologne - Bonn Airport (CGN) to Frankfurt Intl. Airport (FRA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Cologne - Bonn Airport (CGN) to Frankfurt Intl. Airport (FRA)?
Planning your trip for September is a great way to save, as it's the cheapest month for flights between CGN and FRA. You'll often find the lowest prices during the off-season.
Which airlines fly direct from Cologne - Bonn Airport (CGN) to Frankfurt Intl. Airport (FRA)?
You can't catch a direct flight from Cologne (CGN-Cologne - Bonn) to Frankfurt Intl. Airport (FRA). However, you can arrive in Frankfurt without any layovers by departing from Duesseldorf Intl. Airport (DUS).
What is the cheapest airline that flies from Cologne - Bonn Airport (CGN) to Frankfurt Intl. Airport (FRA)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest CGN to FRA flight.
How many flights per day from Cologne - Bonn Airport (CGN) to Frankfurt Intl. Airport (FRA)?
Direct flights from Cologne - Bonn Airport (CGN) to Frankfurt Intl. Airport (FRA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CGN to FRA?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change 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 Frankfurt Intl. Airport (FRA)?
To touch down at Frankfurt Intl. Airport (FRA) without delays, pick a flight that leaves Cologne - Bonn Airport (CGN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Frankfurt Intl. Airport (FRA) last-minute?
Waiting until just before your departure to book a ticket from CGN to FRA often results in higher prices. While you might find some last-minute discounts, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of snagging a bargain.
Is it cheaper to book a CGN to FRA flight and hotel package?
Compared with arranging hotels and flights separately, booking a CGN to FRA flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the stress out of planning your trip. Simply secure your flights and select from our extensive range of stays, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Frankfurt Intl. Airport (FRA)?
Typically, you're able to reschedule or cancel your CGN to FRA flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like further details, head to our Customer Service portal.

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*Available to One Key members.