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

Return flights

30 Sep - 18 Oct	Transavia France
30 Sep - 11 Oct	Transavia France
10 Sep - 17 Sep	easyJet
11 Sep - 17 Sep	easyJet
08 Sep - 21 Sep	easyJet
08 Sep - 17 Sep	easyJet
03 Sep - 17 Sep	easyJet
03 Sep - 10 Sep	easyJet
08 Sep - 14 Sep	easyJet
09 Sep - 18 Sep	Ryanair
04 Sep - 11 Sep	easyJet
05 Sep - 19 Sep	easyJet
27 Sep - 13 Oct	Air France
20 Sep - 04 Oct	Air France
29 Sep - 01 Oct	Lufthansa
23 Sep - 07 Oct	Emirates

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 765€

Return flights