Cheapest return flights from Seattle to Istanbul in August from $926

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 August 2025 (see full year).

Return flights

13 Aug - 03 Sep Icelandair
28 Aug - 11 Sep Icelandair
31 Aug - 14 Sep Icelandair
06 Aug - 01 Sep Icelandair
10 Aug - 19 Aug Icelandair
28 Aug - 11 Sep Turkish Airlines direct
13 Aug - 03 Sep Turkish Airlines direct
23 Aug - 07 Sep Qatar Airways
01 Aug - 15 Aug Icelandair
01 Aug - 15 Aug Turkish Airlines direct
10 Aug - 19 Aug Turkish Airlines direct
06 Aug - 01 Sep Turkish Airlines direct
01 Aug - 23 Aug Delta
01 Aug - 23 Aug Turkish Airlines direct
31 Aug - 14 Sep Turkish Airlines direct
23 Aug - 07 Sep Turkish Airlines direct

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

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul