Cheapest return flights from Istanbul to Oslo in September from 127€

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

Return flights

24 Sep - 30 Sep Norwegian
03 Sep - 09 Sep Pegasus Airlines
24 Sep - 12 Oct Norwegian direct
11 Sep - 15 Sep Pegasus Airlines
03 Sep - 07 Sep Pegasus Airlines
23 Sep - 30 Sep Pegasus Airlines
26 Sep - 30 Sep Pegasus Airlines
17 Sep - 22 Sep Norwegian
11 Sep - 14 Sep Pegasus Airlines
08 Sep - 16 Sep Pegasus Airlines
24 Sep - 15 Oct Norwegian direct
11 Sep - 19 Sep Pegasus Airlines direct
24 Sep - 01 Oct Norwegian direct
24 Sep - 05 Oct Norwegian direct
24 Sep - 08 Oct Norwegian direct
17 Sep - 01 Oct Norwegian direct
17 Sep - 05 Oct Norwegian direct
17 Sep - 08 Oct Norwegian direct
10 Sep - 01 Oct Norwegian 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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