Cheapest return flights from Seattle to Istanbul in October from 523€

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

Return flights

01 Oct - 08 Oct Icelandair
01 Oct - 08 Oct Turkish Airlines direct
23 Oct - 06 Nov British Airways
23 Oct - 06 Nov Turkish Airlines direct
01 Oct - 01 Nov Icelandair
26 Oct - 09 Nov Air France
26 Oct - 09 Nov Turkish Airlines direct
25 Oct - 12 Nov Delta

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

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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