Cheapest return flights from Porto to Thessaloniki in December from $159

AirHint found the following cheapest return flights from Porto (OPO) to Thessaloniki (SKG) in December 2025 (see full year).

Return flights

12 Dec - 15 Dec Ryanair
11 Dec - 16 Dec Ryanair
03 Dec - 11 Dec Ryanair
08 Dec - 15 Dec Ryanair
26 Dec - 03 Jan Air Serbia
29 Dec - 02 Jan Air Serbia
28 Dec - 03 Jan Ryanair
28 Dec - 04 Jan Ryanair
28 Dec - 02 Jan Ryanair
26 Dec - 02 Jan Air Serbia
27 Dec - 02 Jan Ryanair

Also check the deals for one-way flights from Porto to Thessaloniki in December.

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