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

Return flights

01 Sep - 17 Sep	airBaltic
08 Sep - 23 Sep	KLM
18 Sep - 25 Sep	Finnair
07 Sep - 21 Sep	Finnair
05 Sep - 07 Sep	airBaltic
17 Sep - 19 Sep	airBaltic
09 Sep - 18 Sep	KLM
22 Sep - 06 Oct	KLM
06 Sep - 12 Sep	LOT
19 Sep - 30 Sep	LOT
27 Sep - 10 Oct	Turkish Airlines
04 Sep - 11 Sep	LOT
26 Sep - 11 Oct	Austrian Airlines

Also check the deals for one-way flights from Riga 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 Riga to Tokyo in September from 835€

Return flights