Cheapest return flights from Frankfurt to Oslo in September from $149

Best time to book flights for Frankfurt (FRA) to Oslo (OSL) flights at AirHint

AirHint found the following cheapest return flights from Frankfurt (FRA) to Oslo (OSL) in September 2025 (see full year).

Return flights

12 Sep - 17 Sep Ryanair
04 Sep - 07 Sep Ryanair
02 Sep - 17 Sep easyJet
22 Sep - 24 Sep easyJet
15 Sep - 17 Sep easyJet
23 Sep - 25 Sep easyJet
16 Sep - 19 Sep easyJet
06 Sep - 13 Sep KLM
01 Sep - 06 Sep KLM
12 Sep - 16 Sep KLM

Also check the deals for one-way flights from Frankfurt to Oslo in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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