Cheapest return flights from Istanbul to Oslo in September from 115€

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

Return flights

06 Sep - 14 Sep Pegasus Airlines direct
10 Sep - 14 Sep Norwegian direct
24 Sep - 12 Oct Norwegian direct
05 Sep - 10 Sep Pegasus Airlines
11 Sep - 16 Sep Pegasus Airlines
05 Sep - 10 Sep Pegasus Airlines direct
04 Sep - 14 Sep Pegasus Airlines direct
09 Sep - 16 Sep Pegasus Airlines
26 Sep - 01 Oct Pegasus Airlines
11 Sep - 14 Sep Pegasus Airlines direct
24 Sep - 15 Oct Norwegian direct
17 Sep - 21 Sep Norwegian direct
06 Sep - 10 Sep Pegasus Airlines direct
24 Sep - 05 Oct Norwegian direct
24 Sep - 08 Oct Norwegian direct
17 Sep - 05 Oct Norwegian direct
17 Sep - 08 Oct Norwegian direct
28 Sep - 19 Oct Norwegian direct
08 Sep - 08 Oct Pegasus Airlines direct
21 Sep - 12 Oct Norwegian direct

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