$144 Cheap Flights from Cologne (CGN) to Oslo (OSL)

View $144 flight on Fri, Nov 14, 2025Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to Gardermoen Airport (OSL)

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Cheap Flights from Cologne to Oslo (CGN-OSL)

Prices were available within the past 7 days and start at $144 for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Jun 4 - Wed, Jun 11
CGN
Cologne
OSL
Oslo
$218 Roundtrip, found 5 days ago
$218
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Jun 4 from Cologne to Oslo, returning Wed, Jun 11, priced at $218 found 5 days ago
Austrian Airlines
Wed, Jun 4 - Wed, Jun 11
CGN
Cologne
OSL
Oslo
$220 Roundtrip, found 5 days ago
$220
Roundtrip
found 5 days ago
Select Austrian Airlines flight, departing Wed, Jun 4 from Cologne to Oslo, returning Wed, Jun 11, priced at $220 found 5 days ago
Lufthansa
Mon, Sep 8 - Sat, Sep 13
CGN
Cologne
OSL
Oslo
$227 Roundtrip, found 3 days ago
$227
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Mon, Sep 8 from Cologne to Oslo, returning Sat, Sep 13, priced at $227 found 3 days ago
Lufthansa
Mon, Sep 8 - Sat, Sep 13
CGN
Cologne
OSL
Oslo
$236 Roundtrip, found 3 days ago
$236
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Mon, Sep 8 from Cologne to Oslo, returning Sat, Sep 13, priced at $236 found 3 days ago
Austrian Airlines
Wed, Jun 4 - Wed, Jun 11
CGN
Cologne
OSL
Oslo
$238 Roundtrip, found 5 days ago
$238
Roundtrip
found 5 days ago
Select Austrian Airlines flight, departing Wed, Jun 4 from Cologne to Oslo, returning Wed, Jun 11, priced at $238 found 5 days ago
Lufthansa
Mon, Sep 8 - Sat, Sep 13
CGN
Cologne
OSL
Oslo
$245 Roundtrip, found 3 days ago
$245
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Mon, Sep 8 from Cologne to Oslo, returning Sat, Sep 13, priced at $245 found 3 days ago
Lufthansa
Wed, Jun 4 - Wed, Jun 11
CGN
Cologne
OSL
Oslo
$249 Roundtrip, found 5 days ago
$249
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Jun 4 from Cologne to Oslo, returning Wed, Jun 11, priced at $249 found 5 days ago
Lufthansa
Sun, Jun 22 - Mon, Jul 7
CGN
Cologne
OSL
Oslo
$265 Roundtrip, found 4 days ago
$265
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sun, Jun 22 from Cologne to Oslo, returning Mon, Jul 7, priced at $265 found 4 days ago
Lufthansa
Sat, May 31 - Thu, Jun 5
QKL
Cologne
OSL
Oslo
$266 Roundtrip, found 2 days ago
$266
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sat, May 31 from Cologne to Oslo, returning Thu, Jun 5, priced at $266 found 2 days ago
Lufthansa
Wed, Jun 4 - Wed, Jun 11
CGN
Cologne
OSL
Oslo
$267 Roundtrip, found 5 days ago
$267
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Jun 4 from Cologne to Oslo, returning Wed, Jun 11, priced at $267 found 5 days ago
Flights from Cologne (CGN) to Oslo (OSL)
Origin airport
Cologne - Bonn
Destination airport
Gardermoen
Airlines serving
British Airways
Roundtrip price
$217
Distance
661 mi

Cologne to Oslo Flights

The cheapest times to fly from Cologne to Oslo

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

 

The best time to book a flight from Cologne to Oslo

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

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 Oslo in 2025. You can also book with separate airlines for your outbound and return journeys, from $144 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 Oslo 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 Oslo 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 Gardermoen Airport (OSL) cost?
Discover the latest flight deals from CGN to OSL 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 OSL?
The cheapest flights from CGN to OSL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Cologne - Bonn Airport (CGN) to Gardermoen Airport (OSL)?
While Cologne (CGN-Cologne - Bonn) has no direct flights to Gardermoen Airport (OSL), other airports have nonstop options. Traveling from Duesseldorf Intl. Airport (DUS) will get you to Oslo without any detours.
What is the cheapest airline that flies from CGN to OSL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from CGN to OSL. 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 Gardermoen Airport (OSL)?
You’ll have to book a flight with a layover when traveling from Cologne - Bonn Airport (CGN) to Gardermoen Airport (OSL). Direct flights don’t operate daily on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from CGN to OSL?
Usually you’ll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, 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 Gardermoen Airport (OSL)?
Select a flight from Cologne - Bonn Airport (CGN) to Gardermoen Airport (OSL) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Gardermoen Airport (OSL) last-minute?
Last-minute bookings from CGN to OSL are typically more expensive. For the best prices, start looking for flights as soon as possible. That said, if your travel plans are flexible, it’s possible to find a cheap ticket right before your trip.
Is it cheaper to book a CGN to OSL flight and hotel package?
Compared with arranging hotels and flights separately, booking a CGN to OSL flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place takes the hassle out of planning your trip. Just secure your flights and choose from our wide range of stays, then customize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Gardermoen Airport (OSL)?
If you reserved your CGN to OSL flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you’d like more information.

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*Available to One Key members.