AirHint found the following cheapest return flights from Dublin (DUB) to Osaka (KIX) in September 2025 (see full year).

Return flights

03 Sep - 09 Sep	Ryanair
03 Sep - 17 Sep	Ryanair
09 Sep - 16 Sep	Ryanair
02 Sep - 09 Sep	Ryanair
08 Sep - 22 Sep	Ryanair
20 Sep - 03 Oct	Ryanair
13 Sep - 17 Sep	Ryanair
11 Sep - 24 Sep	Ryanair
09 Sep - 19 Sep	Ryanair
14 Sep - 18 Sep	Ryanair
04 Sep - 17 Sep	Ryanair
30 Sep - 07 Oct	Vueling Airlines
26 Sep - 07 Oct	Ryanair
13 Sep - 02 Oct	Air France
26 Sep - 03 Oct	Air Canada

Also check the deals for one-way flights from Dublin to Osaka 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 Dublin to Osaka in September from $803

Return flights