Cheapest return flights from Oslo to Istanbul in October from 133€

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

Return flights

12 Oct - 15 Oct Norwegian direct
08 Oct - 15 Oct Norwegian direct
05 Oct - 15 Oct Norwegian direct
27 Oct - 03 Nov Pegasus Airlines direct
25 Oct - 08 Nov Pegasus Airlines direct
01 Oct - 15 Oct Norwegian direct
05 Oct - 08 Oct Norwegian direct
06 Oct - 08 Oct Ryanair
01 Oct - 08 Oct Ryanair
19 Oct - 26 Oct Norwegian direct
19 Oct - 27 Oct Norwegian direct
26 Oct - 07 Nov Pegasus Airlines direct
17 Oct - 30 Oct Pegasus Airlines direct
25 Oct - 01 Nov Pegasus 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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