If you want a cheap flight from Teesside to Oslo, you've got zero 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.
If you're planning on going to Oslo during this time, you could take a look at other airport options. Or you could try to get a last-minute bargain.
