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

Return flights

23 Sep - 04 Oct	easyJet
09 Sep - 17 Sep	Ryanair
14 Sep - 21 Sep	Ryanair
16 Sep - 28 Sep	easyJet
04 Sep - 17 Sep	Ryanair
23 Sep - 07 Oct	easyJet
15 Sep - 22 Sep	easyJet
01 Sep - 12 Sep	Ryanair
07 Sep - 14 Sep	Air Europa
22 Sep - 06 Oct	British Airways
15 Sep - 26 Sep	easyJet
06 Sep - 21 Sep	easyJet
09 Sep - 16 Sep	Air Europa
26 Sep - 30 Oct	Ryanair
25 Sep - 30 Oct	easyJet
26 Sep - 27 Oct	SWISS
24 Sep - 15 Oct	KLM
28 Sep - 12 Oct	SWISS
27 Sep - 03 Oct	Iberia
26 Sep - 10 Oct	Iberia

Also check the deals for one-way flights from Porto 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 Porto to Tokyo in September from $903

Return flights