Every Oslo–Frankfurt fare we track, measured against the route's typical price whenever there is enough cached history to build one. Subscribe in any RSS reader for free single-route price alerts — no account, no email needed.https://flight.dealsen-ushttps://flight.deals/flights/oslo-to-frankfurt/#2026-09-09-2026-09-11-RKhttps://flight.deals/flights/oslo-to-frankfurt/#2026-09-09-2026-09-11-RKOSL → FRA round-trip on Ryanair UK, 2026-09-09 to 2026-09-11 (2 nights). Cached fare $151. Not enough cached history on this route yet to say what it usually costs.Sun, 30 Aug 2026 05:03:17 GMT