Cheapest return flights from Seattle to Istanbul in January from $399

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

Return flights

28 Jan - 11 Feb Icelandair
15 Jan - 07 Feb Lufthansa
31 Jan - 14 Feb British Airways
07 Jan - 31 Jan British Airways
19 Jan - 04 Feb British Airways
01 Jan - 17 Jan British Airways
24 Jan - 29 Jan Turkish Airlines
07 Jan - 31 Jan Turkish Airlines direct
03 Jan - 27 Jan Turkish Airlines direct
15 Jan - 07 Feb Turkish Airlines direct
03 Jan - 13 Jan British Airways
19 Jan - 04 Feb Turkish Airlines direct
24 Jan - 29 Jan Turkish Airlines direct
28 Jan - 11 Feb Turkish Airlines direct
31 Jan - 14 Feb Turkish Airlines direct
03 Jan - 13 Jan Turkish Airlines direct
01 Jan - 10 Jan Lufthansa
14 Jan - 21 Jan Turkish Airlines direct

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

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