Cheapest return flights from Porto to Istanbul in December from $316

Best time to book flights for Porto (OPO) to Istanbul (SAW) flights at AirHint

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

Return flights

01 Dec - 07 Dec easyJet
01 Dec - 08 Dec easyJet
05 Dec - 08 Dec easyJet
06 Dec - 08 Dec Ryanair
27 Dec - 11 Jan Ryanair
26 Dec - 08 Jan Vueling Airlines
26 Dec - 31 Dec Ryanair
15 Dec - 22 Dec easyJet
26 Dec - 03 Jan TAP
20 Dec - 06 Jan Ryanair

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

Skyscanner

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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