Cheapest return flights from Frankfurt to Oslo in September from $139

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

03 Sep - 10 Sep Ryanair
25 Sep - 29 Sep Ryanair
04 Sep - 07 Sep Ryanair
04 Sep - 08 Sep Ryanair
11 Sep - 14 Sep Ryanair
14 Sep - 19 Sep Ryanair
11 Sep - 15 Sep Ryanair
12 Sep - 15 Sep Ryanair
19 Sep - 21 Sep Ryanair
05 Sep - 07 Sep Ryanair
29 Sep - 06 Oct easyJet
26 Sep - 04 Oct Ryanair
29 Sep - 03 Oct Ryanair
08 Sep - 10 Oct easyJet
27 Sep - 09 Oct easyJet
27 Sep - 02 Oct easyJet
27 Sep - 02 Oct Lufthansa direct
27 Sep - 09 Oct Lufthansa direct
29 Sep - 06 Oct Lufthansa direct
29 Sep - 03 Oct Lufthansa direct

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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