Cheapest return flights from Seattle to Istanbul in September from $699

AirHint found the following cheapest return flights from Seattle (SEA) to Istanbul (SAW) in September 2026 (see full year).

Return flights

13 Sep - 20 Sep Scandinavian Airlines
15 Sep - 23 Sep Icelandair
12 Sep - 18 Sep SWISS
08 Sep - 22 Sep Icelandair
02 Sep - 09 Sep Icelandair
28 Sep - 09 Oct Icelandair
29 Sep - 09 Oct Icelandair
20 Sep - 27 Sep Qatar Airways

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

Powered by

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Feel free to contact us with any feedback or request another flight research.