Cheapest return flights from Oslo to Istanbul in September from $151

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

Return flights

10 Sep - 24 Sep Pegasus Airlines direct
14 Sep - 24 Sep Pegasus Airlines direct
16 Sep - 24 Sep Wizz Air
14 Sep - 17 Sep Pegasus Airlines direct
14 Sep - 20 Sep Pegasus Airlines direct
20 Sep - 24 Sep Pegasus Airlines direct
17 Sep - 20 Sep Pegasus Airlines direct
05 Sep - 11 Sep Pegasus Airlines direct
17 Sep - 27 Sep Pegasus Airlines direct
07 Sep - 12 Sep Pegasus Airlines direct
29 Sep - 01 Oct Wizz Air
24 Sep - 01 Oct Norwegian
25 Sep - 01 Oct Wizz Air
30 Sep - 15 Oct Wizz Air
13 Sep - 11 Oct Ryanair
24 Sep - 05 Oct Norwegian
28 Sep - 01 Oct Wizz Air
29 Sep - 11 Oct Wizz Air
18 Sep - 10 Oct Wizz Air
25 Sep - 02 Oct Norwegian

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

Skyscanner

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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