Cheapest return flights from Istanbul to Oslo in May from 147€

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

Return flights

08 May - 12 May Pegasus Airlines direct
08 May - 16 May Pegasus Airlines direct
02 May - 04 May Pegasus Airlines direct
01 May - 04 May Pegasus Airlines direct
14 May - 28 May Pegasus Airlines direct
27 May - 30 May Pegasus Airlines direct
25 May - 29 May Pegasus Airlines direct
16 May - 20 May Air Serbia
23 May - 30 May Air Serbia
24 May - 24 May Pegasus Airlines direct
23 May - 01 Jun Pegasus Airlines direct
29 May - 25 Jun Air Serbia
29 May - 25 Jun Pegasus Airlines direct

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

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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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