Cheapest return flights from Istanbul to Oslo in May from $139

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

Return flights

05 May - 09 May Wizz Air UK
01 May - 10 May Pegasus Airlines
02 May - 03 May Pegasus Airlines
12 May - 17 May Pegasus Airlines direct
11 May - 17 May Pegasus Airlines direct
13 May - 17 May Pegasus Airlines direct
14 May - 17 May Pegasus Airlines direct
02 May - 02 May Pegasus Airlines direct
02 May - 03 May Pegasus Airlines direct
07 May - 11 May Pegasus Airlines direct
20 May - 07 Jun Pegasus Airlines
23 May - 01 Jun Pegasus Airlines
20 May - 07 Jun Pegasus Airlines direct
23 May - 01 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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