Cheapest return flights from Oslo to Istanbul in August from $140

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

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

Return flights

17 Aug - 03 Sep Norwegian direct
24 Aug - 10 Sep Norwegian direct
24 Aug - 03 Sep Norwegian direct
28 Aug - 03 Sep Pegasus Airlines direct
17 Aug - 31 Aug Norwegian direct
24 Aug - 31 Aug Norwegian direct
21 Aug - 28 Aug Air Serbia
17 Aug - 20 Aug Norwegian direct
12 Aug - 29 Aug Pegasus Airlines
21 Aug - 28 Aug Turkish Airlines direct
12 Aug - 29 Aug Turkish Airlines direct
06 Aug - 20 Aug Norwegian direct
24 Aug - 07 Sep Norwegian direct
06 Aug - 17 Aug Norwegian
04 Aug - 15 Aug Pegasus Airlines

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

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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