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

Return flights

03 Sep - 17 Sep	Norwegian Air Sweden AOC
11 Sep - 18 Sep	Ryanair
08 Sep - 21 Sep	Ryanair
17 Sep - 22 Sep	Ryanair
09 Sep - 23 Sep	Ryanair
05 Sep - 21 Sep	Ryanair
11 Sep - 15 Sep	Ryanair
01 Sep - 07 Sep	Air Europa
12 Sep - 21 Sep	easyJet
08 Sep - 12 Sep	Ryanair
24 Sep - 08 Oct	Air France
29 Sep - 07 Oct	Air France
25 Sep - 09 Oct	Lufthansa
20 Sep - 04 Oct	Air Europa
28 Sep - 12 Oct	Air France
27 Sep - 11 Oct	Air France
26 Sep - 10 Oct	British Airways

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 $891

Return flights