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

Return flights

10 Sep - 17 Sep	Norwegian Air Sweden AOC
08 Sep - 16 Sep	Norwegian Air Sweden AOC
09 Sep - 16 Sep	Ryanair
25 Sep - 02 Oct	Ryanair
18 Sep - 02 Oct	Ryanair
23 Sep - 28 Sep	Ryanair
24 Sep - 28 Sep	Ryanair
11 Sep - 17 Sep	Ryanair
20 Sep - 24 Sep	Ryanair
22 Sep - 30 Sep	Norwegian Air Sweden AOC
10 Sep - 14 Sep	Norwegian Air Sweden AOC
20 Sep - 04 Oct	Ryanair
06 Sep - 08 Sep	Finnair

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 762€

Return flights