If you want a cheap flight from Dundee to Oslo, you've got one airlines to choose from.
Oslo (Gardermoen) Airport is just one of the airports in Oslo. If you're not set on a specific airport, try changing your search from Oslo (Gardermoen) Airport to Oslo to see a broader range of flights – they might be cheaper. It usually takes about 6 hrs 25 mins to fly 922 km to Oslo (Gardermoen) Airport.
There are about eight flights to or via Oslo every week, so you have plenty of options. Keep your eye out for flights
You can expect accommodation prices to be higher at this time of year too. Last-minute deals do crop up, but it's best to book everything in advance to avoid disappointment.