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

Return flights

19 Jan - 27 Jan	Pegasus Airlines	direct
16 Jan - 25 Jan	Pegasus Airlines	direct
14 Jan - 21 Jan	Pegasus Airlines
14 Jan - 21 Jan	Pegasus Airlines	direct
30 Jan - 11 Feb	Air France
08 Jan - 12 Jan	Pegasus Airlines
08 Jan - 12 Jan	Pegasus Airlines	direct
30 Jan - 11 Feb	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul to Oslo 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 Istanbul to Oslo in January from 150€

Return flights