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

Return flights

10 Dec - 13 Dec	Ryanair
02 Dec - 06 Dec	Wizz Air
11 Dec - 18 Dec	Wizz Air
10 Dec - 17 Dec	Ryanair
08 Dec - 12 Dec	Ryanair
02 Dec - 15 Dec	Ryanair
06 Dec - 14 Dec	Ryanair
04 Dec - 08 Dec	Ryanair
07 Dec - 12 Dec	Ryanair
02 Dec - 05 Dec	Wizz Air
13 Dec - 10 Jan	Norwegian
27 Dec - 11 Jan	Wizz Air
08 Dec - 06 Jan	Ryanair
15 Dec - 30 Jan	Pegasus Airlines	direct
17 Dec - 06 Jan	Wizz Air
30 Dec - 01 Jan	Pegasus Airlines
25 Dec - 08 Jan	Wizz Air
30 Dec - 04 Jan	Wizz Air
25 Dec - 07 Jan	Pegasus Airlines
20 Dec - 08 Jan	Ryanair

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 144€

Return flights