The cheapest flight to Oslo you can get by boooking 60 days before departure.
The most popular airlines on the route Warsaw - Oslo: Ryanair (FR), Wizz Air (W6), Norwegian Air Shuttle (DY).
The cheapest flights you can book on the route Modlin (WMI) - Sandefjord Torp (TRF).
Direct flights last about 1h 47min.
Direct flights available 7 days a week.
Direct flights: Wizz Air (W6), Ryanair (FR), Norwegian Air Shuttle (DY).