Cheapest return flights from Seattle to Istanbul in October from $818

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

Return flights

15 Oct - 29 Oct Aer Lingus
17 Oct - 23 Oct British Airways
18 Oct - 01 Nov Icelandair
01 Oct - 01 Nov Qatar Airways
09 Oct - 29 Oct Qatar Airways
25 Oct - 12 Nov Qatar Airways

Also check the deals for one-way flights from Seattle 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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