Oslo (OSL) to Belgrade (BEG): 1,128 miles (1,816 km) great-circle, about 2h 45m nonstop by our estimate. Cheapest fare observed: $206 round-trip on Norwegian, nonstop, departing May 25, 2026.
$206 round-trip, Norwegian DY1954, departing 2026-05-25 at 17:10, returning 2026-05-29. The recorded itinerary left on a Monday, returning on a Friday 4 nights later; the fare was observed 30 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $206, it ranked 14th of the 30 round-trip fares we recorded from OSL (median $244). That is 18.3 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: Reykjavik (1,107 mi) at $356 and Bucharest (1,245 mi) at $56.
Norwegian had the cheapest fare on 8 of 30 OSL routes. It is the 17th longest of the 30 routes we track from OSL.
Of 36 departure airports with a fare to Belgrade, Oslo (OSL) ranked 15th at $206. Lowest: $80 from Rome (FCO); highest: $1665 from Buenos Aires (EZE); 11 nonstop. Cheapest-fare airlines (routes): easyJet (6), Wizz Air (6), Vueling (4), Ryanair (3), Wizz Air Malta (3) and Air Serbia (2), plus 10 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/Oslo, Europe/Belgrade; flight time is our estimate.