Cheapest return flights from Istanbul to Oslo in September from 123€

Best time to book flights for Istanbul (IST) to Oslo (OSL) flights at AirHint

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

Return flights

10 Sep - 17 Sep Norwegian direct
10 Sep - 01 Oct Norwegian direct
10 Sep - 14 Sep Norwegian direct
10 Sep - 12 Sep Norwegian
10 Sep - 12 Sep 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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