AirHint found the following cheapest return flights from Porto (OPO) to Osaka (KIX) in March 2026 (see full year).

Return flights

09 Mar - 16 Mar	Ryanair
16 Mar - 29 Mar	Ryanair
08 Mar - 17 Mar	Ryanair
02 Mar - 09 Mar	Ryanair
04 Mar - 14 Mar	easyJet
08 Mar - 22 Mar	easyJet
03 Mar - 14 Mar	easyJet
04 Mar - 18 Mar	easyJet
20 Mar - 27 Mar	Vueling Airlines
27 Mar - 06 Apr	Ryanair
24 Mar - 03 Apr	Air Europa
23 Mar - 04 Apr	Ryanair
28 Mar - 04 Apr	easyJet

Also check the deals for one-way flights from Porto to Osaka in March.

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 Osaka in March from $759

Return flights