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

Return flights

08 Sep - 23 Sep	Norwegian
08 Sep - 16 Sep	Thai Airways
09 Sep - 17 Sep	LOT
09 Sep - 15 Sep	LOT
02 Sep - 15 Sep	LOT
09 Sep - 22 Sep	Thai Airways
11 Sep - 15 Sep	LOT
01 Sep - 18 Sep	Norwegian
09 Sep - 16 Sep	LOT
02 Sep - 18 Sep	LOT
15 Sep - 08 Oct	Thai Airways
28 Sep - 08 Oct	Thai Airways
16 Sep - 02 Oct	Thai Airways
01 Sep - 01 Oct	Thai Airways
20 Sep - 02 Oct	Thai Airways
27 Sep - 04 Oct	Norwegian
11 Sep - 17 Oct	LOT
27 Sep - 08 Oct	Thai Airways
27 Sep - 03 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 688€

Return flights