Cheapest return flights from Istanbul to Porto in December from $230

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

Return flights

01 Dec - 08 Dec Pegasus Airlines
01 Dec - 04 Dec Vueling Airlines
01 Dec - 09 Dec Vueling Airlines
26 Dec - 29 Dec Air Serbia
30 Dec - 04 Jan AJet
26 Dec - 29 Dec Turkish Airlines direct
01 Dec - 08 Dec Turkish Airlines direct
09 Dec - 22 Dec Vueling Airlines
09 Dec - 20 Dec Vueling Airlines
09 Dec - 19 Dec Vueling Airlines
09 Dec - 21 Dec Vueling Airlines
27 Dec - 15 Jan Vueling Airlines
27 Dec - 12 Jan Vueling Airlines
29 Dec - 15 Jan Vueling Airlines
29 Dec - 12 Jan Vueling Airlines
23 Dec - 12 Jan Vueling Airlines
26 Dec - 15 Jan Vueling Airlines
26 Dec - 12 Jan Vueling Airlines
27 Dec - 08 Jan Vueling Airlines
29 Dec - 08 Jan Vueling Airlines

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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