Cheapest return flights from Seattle to Istanbul in April from 766€

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 April 2025 (see full year).

Return flights

24 Apr - 29 Apr Icelandair
03 Apr - 08 Apr WestJet
21 Apr - 26 Apr Icelandair
09 Apr - 14 Apr WestJet
06 Apr - 11 Apr Icelandair
15 Apr - 20 Apr Icelandair
18 Apr - 23 Apr Icelandair
04 Apr - 08 Apr Alaska Airlines
12 Apr - 17 Apr Icelandair
30 Apr - 05 May Qatar Airways
09 Apr - 18 Apr Qatar Airways
30 Apr - 05 May Turkish Airlines direct

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

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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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