Oslo (OSL) to Istanbul (IST): 1,507 miles (2,425 km) great-circle, about 3h 30m nonstop by our estimate. Cheapest fare observed: $268 round-trip on Wizz Air, with 2 stops, departing June 21, 2026.
$268 round-trip, Wizz Air W61516, departing 2026-06-21 at 15:05, returning 2026-06-25. The recorded itinerary left on a Sunday, returning on a Thursday 4 nights later; the fare was observed 57 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $268, it ranked 17th of the 30 round-trip fares we recorded from OSL (median $244). That is 17.8 cents per great-circle mile (round-trip price over one-way distance), close to the OSL median of 18.6 cents across 30 round-trip routes.
Routes from OSL of similar length: Krasnodar (1,555 mi) at $596 and Alicante (1,597 mi) at $114.
Wizz Air had the cheapest fare on 6 of 30 OSL routes. It is the 12th longest of the 30 routes we track from OSL.
Of 117 departure airports with a fare to Istanbul, Oslo (OSL) ranked 41st at $268. Lowest: $60 from Antalya (AYT); highest: $1639 from Wellington (WLG); 29 nonstop. Cheapest-fare airlines (routes): Pegasus Airlines (13), Qatar (7), WestJet (6), Wizz Air (6), Gulf Air (5) and Turkish (5), plus 51 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/Oslo, Europe/Istanbul; flight time is our estimate.