AirHint found the following cheapest return flights from Porto (OPO) to Colombo (CMB) in December 2025 (see full year).
Return flights
| 01 Dec - 13 Dec | Ryanair | ||
| 08 Dec - 19 Dec | Ryanair | ||
| 29 Dec - 10 Jan | Ryanair | ||
| 26 Dec - 07 Jan | Vueling Airlines | ||
| 29 Dec - 04 Jan | Ryanair |
Also check the deals for one-way flights from Porto to Colombo in December.
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