Cheapest return flights from Seattle to Istanbul in May from $707

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 May 2025 (see full year).

Return flights

13 May - 20 May Air Canada
18 May - 27 May Icelandair
12 May - 21 May Icelandair
14 May - 21 May Icelandair
12 May - 16 May Icelandair
12 May - 26 May Icelandair
05 May - 14 May Lufthansa
28 May - 06 Jun Icelandair
24 May - 30 May Icelandair
24 May - 07 Jun Icelandair
08 May - 15 May SWISS
16 May - 30 May Icelandair
17 May - 01 Jun Qatar Airways
23 May - 14 Jun Qatar Airways
23 May - 14 Jun Turkish Airlines direct
17 May - 01 Jun Turkish Airlines direct
24 May - 07 Jun Turkish Airlines direct
28 May - 06 Jun Turkish Airlines direct
27 May - 01 Jun KLM

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

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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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