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

Return flights

08 Dec - 31 Dec	ITA Airways
09 Dec - 31 Dec	ITA Airways
13 Dec - 28 Dec	KLM
11 Dec - 23 Dec	KLM
09 Dec - 16 Dec	ITA Airways
24 Dec - 14 Jan	KLM
15 Dec - 26 Dec	KLM
15 Dec - 31 Dec	KLM
08 Dec - 15 Dec	ITA Airways
15 Dec - 25 Dec	KLM
23 Dec - 30 Dec	KLM
15 Dec - 30 Jan	Pegasus Airlines
16 Dec - 29 Jan	Pegasus Airlines
15 Dec - 10 Jan	KLM
23 Dec - 07 Jan	KLM
26 Dec - 20 Jan	KLM
27 Dec - 11 Jan	KLM
21 Dec - 10 Jan	KLM
26 Dec - 11 Jan	KLM
25 Dec - 11 Jan	KLM

Also check the deals for one-way flights from Sao Paulo to Istanbul 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 Sao Paulo to Istanbul in December from $979

Return flights