The cheapest flight to Istanbul Ataturk you can get by boooking just before departure.
The most popular airlines on the route Oslo Gardermoen - Istanbul Ataturk: Turkish Airlines (TK), SAS (SK), British Airways (BA).
Direct flights last about 3h 55min.
Direct flights available 4 days a week - Wednesday, Thursday, Friday, Saturday.
Direct flights: Turkish Airlines (TK), SAS (SK).