AirHint found the following cheapest return flights from Lille (LIL) to Porto (OPO) in March 2026 (see full year).
Return flights
| 06 Mar - 09 Mar | Ryanair | direct | |
| 06 Mar - 27 Mar | Ryanair | direct | |
| 05 Mar - 08 Mar | easyJet | ||
| 11 Mar - 14 Mar | Volotea | ||
| 27 Mar - 29 Mar | Ryanair | ||
| 27 Mar - 13 Apr | Ryanair | direct | |
| 27 Mar - 06 Apr | Ryanair | direct |
Also check the deals for one-way flights from Lille to Porto in March.
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