Cheapest return flights from Oslo to Istanbul in August from $133

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

20 Aug - 03 Sep Norwegian direct
24 Aug - 03 Sep Norwegian direct
24 Aug - 10 Sep Norwegian direct
31 Aug - 17 Sep Norwegian direct
31 Aug - 03 Sep Norwegian direct
21 Aug - 18 Sep Pegasus Airlines direct
31 Aug - 10 Sep Norwegian direct
20 Aug - 27 Aug Norwegian direct
06 Aug - 13 Aug Norwegian
13 Aug - 27 Aug Norwegian direct
24 Aug - 27 Aug Norwegian direct
20 Aug - 31 Aug Norwegian direct
10 Aug - 27 Aug Norwegian direct
13 Aug - 31 Aug Norwegian direct
24 Aug - 31 Aug Norwegian direct
13 Aug - 20 Aug Norwegian
13 Aug - 20 Aug Norwegian direct

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul