Cheapest return flights from Seattle to Istanbul in April from 509€

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

Return flights

22 Apr - 29 Apr KLM
01 Apr - 09 Apr KLM
20 Apr - 26 Apr KLM
15 Apr - 03 May Icelandair
03 Apr - 14 Apr Hawaiian Airlines
10 Apr - 17 Apr Hawaiian Airlines
03 Apr - 18 Apr Hawaiian Airlines
03 Apr - 12 Apr Hawaiian Airlines
14 Apr - 21 Apr Qatar Airways
20 Apr - 04 May Qatar Airways
02 Apr - 06 Apr Icelandair
17 Apr - 01 May Qatar Airways
20 Apr - 05 May Qatar Airways

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

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