AirHint found the following cheapest return flights from Oslo (OSL) to Istanbul (SAW) in January 2026 (see full year).

Return flights

23 Jan - 25 Jan	Ryanair
21 Jan - 25 Jan	Pegasus Airlines
21 Jan - 25 Jan	Pegasus Airlines	direct
22 Jan - 25 Jan	Pegasus Airlines	direct
10 Jan - 20 Jan	Ryanair
10 Jan - 20 Jan	Pegasus Airlines	direct

Also check the deals for one-way flights from Oslo to Istanbul in January.

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 January from 139€

Return flights