Cheapest return flights from Oslo to Istanbul in October from $141

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

Return flights

14 Oct - 21 Oct Wizz Air
18 Oct - 31 Oct Pegasus Airlines direct
08 Oct - 15 Oct Pegasus Airlines direct
14 Oct - 17 Oct Wizz Air
25 Oct - 31 Oct Pegasus Airlines direct
24 Oct - 31 Oct Pegasus Airlines direct
12 Oct - 19 Oct Norwegian
12 Oct - 22 Oct Norwegian
30 Oct - 03 Nov Norwegian
10 Oct - 17 Oct Pegasus Airlines
15 Oct - 19 Oct Pegasus Airlines
11 Oct - 11 Nov Pegasus Airlines direct
31 Oct - 03 Nov Ryanair
29 Oct - 05 Nov Ryanair
30 Oct - 02 Nov Norwegian
24 Oct - 01 Nov Pegasus Airlines
25 Oct - 01 Nov Pegasus Airlines
31 Oct - 09 Nov Air Serbia
27 Oct - 03 Nov Pegasus Airlines direct
29 Oct - 05 Nov Turkish Airlines direct

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

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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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