The cheapest Oslo to Mombasa return flight on the radar right now is €617, flying with Lufthansa via one or more connections. It covers departures in November 2026, and every dated link below opens that exact OSL–MBA search on Skyscanner. Across 43 recorded checks it has ranged between €572 and €806. Our sampling points to November 2026 as the cheapest month to fly Oslo to Mombasa.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from Oslo? We track 53 other departure cities for Mombasa, listed at the foot of this page.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since Oslo to Mombasa is often still worth booking within a day or two of the fare we found.