Question : In the next four weeks, what day should you book your trip?
Answer : Mar 12th has seen bookings (as of Feb 27th) as cheap as $153. That comes in 24% below the average price for this route. Saving on booking fees means you'll have more cash in your hand for the trip.
Question : Do prices fluctuate more for this route than others?
Answer : Prices for this trip tend to change less than other flights from Germany. They can range from $153 to $268. However, the sooner you book, the better price you tend to get.
Question : Is Cologne Bonn Airport (CGN) the cheapest airport for getting to Oslo Airport Gardermoen (OSL)?
Answer : Cologne Bonn Airport is a great airport, but in getting you to Oslo, there is a cheaper option – Dusseldorf International Airport. It's just 32 miles away and flights are being priced 23% cheaper over the next two months.
Question : How many days should you spend in Oslo?
Answer : Travelers from CGN to OSL stay about one week on average.
Question : If your plans are flexible, have you considered changing your departure day?
Answer : The cheapest day to fly in March is Tuesday. Being flexible with your travel days garners even more savings during booking.