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

Return flights

02 Sep - 15 Sep	Hainan Airlines
09 Sep - 15 Sep	Hainan Airlines
01 Sep - 15 Sep	Norwegian
18 Sep - 02 Oct	Norwegian
24 Sep - 16 Oct	Ryanair
16 Sep - 30 Sep	Thai Airways
16 Sep - 07 Oct	Thai Airways
15 Sep - 07 Oct	Ryanair
07 Sep - 15 Sep	Ryanair
20 Sep - 20 Oct	Hainan Airlines
20 Sep - 27 Sep	Hainan Airlines
07 Sep - 16 Sep	Thai Airways
07 Sep - 14 Sep	Thai Airways
15 Sep - 29 Sep	Thai Airways
15 Sep - 24 Sep	Thai Airways
08 Sep - 08 Oct	Thai Airways
18 Sep - 08 Oct	Thai Airways
08 Sep - 01 Oct	Thai Airways
08 Sep - 20 Oct	Air France
17 Sep - 08 Oct	Thai Airways

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 $743

Return flights