Cheapest return flights from Istanbul to Porto in December from $184

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

Return flights

04 Dec - 11 Dec Pegasus Airlines
03 Dec - 08 Dec Pegasus Airlines
04 Dec - 08 Dec Pegasus Airlines
05 Dec - 09 Dec Pegasus Airlines
15 Dec - 17 Dec Vueling Airlines
09 Dec - 12 Dec Pegasus Airlines
02 Dec - 15 Dec Vueling Airlines
12 Dec - 14 Dec Pegasus Airlines
13 Dec - 15 Dec Vueling Airlines
03 Dec - 15 Dec Vueling Airlines
20 Dec - 07 Jan Pegasus Airlines
25 Dec - 02 Jan Air Serbia
24 Dec - 09 Jan Vueling Airlines
24 Dec - 13 Jan Vueling Airlines
24 Dec - 10 Jan Vueling Airlines
18 Dec - 08 Jan Vueling Airlines
17 Dec - 06 Jan Vueling Airlines
25 Dec - 09 Jan Vueling Airlines
25 Dec - 13 Jan Vueling Airlines
25 Dec - 10 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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