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

Return flights

02 Dec - 08 Dec	Wizz Air
02 Dec - 06 Dec	Wizz Air
03 Dec - 11 Dec	Pegasus Airlines	direct
03 Dec - 10 Dec	Pegasus Airlines	direct
08 Dec - 14 Dec	Ryanair
01 Dec - 09 Dec	Norwegian
08 Dec - 20 Dec	Ryanair
04 Dec - 07 Dec	Ryanair
03 Dec - 07 Dec	Pegasus Airlines	direct
14 Dec - 19 Dec	Scandinavian Airlines
15 Dec - 10 Jan	Norwegian
17 Dec - 11 Jan	Ryanair
15 Dec - 09 Jan	Norwegian
14 Dec - 11 Jan	Norwegian
22 Dec - 04 Jan	Transavia France
17 Dec - 09 Jan	Ryanair
14 Dec - 10 Jan	Norwegian
25 Dec - 04 Jan	Vueling Airlines
26 Dec - 02 Jan	Wizz Air
31 Dec - 02 Jan	Norwegian

Also check the deals for one-way flights from Oslo 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 Oslo to Istanbul in December from 122€

Return flights