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

Return flights

01 Dec - 05 Dec	Pegasus Airlines
03 Dec - 04 Dec	Pegasus Airlines
28 Dec - 01 Jan	AJet
25 Dec - 28 Dec	Pegasus Airlines
06 Dec - 08 Dec	AJet
10 Dec - 14 Dec	Pegasus Airlines
06 Dec - 13 Dec	AJet
05 Dec - 12 Dec	Pegasus Airlines
17 Dec - 28 Dec	Pegasus Airlines
01 Dec - 23 Dec	AJet
31 Dec - 04 Jan	Pegasus Airlines
31 Dec - 07 Jan	Pegasus Airlines
01 Dec - 31 Dec	Pegasus Airlines
26 Dec - 02 Jan	Pegasus Airlines

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

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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Cheapest return flights from Istanbul to Lisbon in December from 156€

Return flights