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

Return flights

22 Sep - 29 Sep	Ryanair
23 Sep - 28 Sep	Hainan Airlines
22 Sep - 28 Sep	Norwegian
20 Sep - 24 Sep	Qatar Airways
22 Sep - 07 Oct	Norwegian
28 Sep - 06 Oct	Finnair
21 Sep - 05 Oct	Qatar Airways
21 Sep - 28 Sep	Finnair
18 Sep - 29 Sep	Thai Airways
19 Sep - 21 Sep	Qatar Airways
30 Sep - 06 Oct	Austrian Airlines
29 Sep - 06 Oct	Thai Airways
29 Sep - 07 Oct	Thai Airways
26 Sep - 06 Oct	Ryanair
27 Sep - 06 Oct	Thai Airways
25 Sep - 04 Oct	Hainan Airlines

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

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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Cheapest return flights from Oslo to Tokyo in September from $1061

Return flights