Cheapest return flights from Seattle to Istanbul in January from 449€

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

Return flights

03 Jan - 24 Jan Lufthansa
09 Jan - 31 Jan Lufthansa
07 Jan - 31 Jan British Airways
13 Jan - 27 Jan British Airways
16 Jan - 30 Jan British Airways
02 Jan - 24 Jan Lufthansa
12 Jan - 19 Jan Delta
14 Jan - 21 Jan Delta
11 Jan - 18 Jan Delta
13 Jan - 27 Jan Turkish Airlines direct

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

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