Cheapest return flights from Seattle to Istanbul in October from 767€

Best time to book flights for Seattle (SEA) to Istanbul (IST) flights at AirHint

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

Return flights

06 Oct - 11 Oct Icelandair
09 Oct - 14 Oct Icelandair
18 Oct - 31 Oct British Airways
27 Oct - 01 Nov Icelandair
24 Oct - 29 Oct Icelandair
15 Oct - 20 Oct Icelandair
03 Oct - 08 Oct Alaska Airlines
12 Oct - 17 Oct British Airways
24 Oct - 29 Oct Turkish Airlines direct
03 Oct - 08 Oct Turkish Airlines direct
15 Oct - 20 Oct Turkish Airlines direct
30 Oct - 04 Nov Delta
30 Oct - 04 Nov Turkish Airlines direct
27 Oct - 01 Nov Turkish Airlines direct

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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