AirHint found the following cheapest return flights from Fortaleza (FOR) to Porto (OPO) in May 2026 (see full year).
Return flights
| 15 May - 26 May | Air France | ||
| 07 May - 17 May | TAP | ||
| 15 May - 30 May | Air France | ||
| 03 May - 31 May | TAP | ||
| 24 May - 31 May | TAP | ||
| 29 May - 12 Jun | TAP | ||
| 31 May - 14 Jun | Air France |
Also check the deals for one-way flights from Fortaleza to Porto in May.
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