AirHint found the following cheapest return flights from Osaka (KIX) to Porto (OPO) in August 2026 (see full year).
Return flights
| 11 Aug - 18 Aug | Peach | ||
| 04 Aug - 16 Aug | Singapore Airlines | ||
| 04 Aug - 15 Aug | ANA | ||
| 08 Aug - 15 Aug | Singapore Airlines |
Also check the deals for one-way flights from Osaka to Porto in August.
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