Cheapest return flights from Seattle to Istanbul in January from 618€

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

Return flights

07 Jan - 21 Jan British Airways
07 Jan - 31 Jan British Airways
04 Jan - 18 Jan British Airways
03 Jan - 13 Jan British Airways
07 Jan - 21 Jan Turkish Airlines direct
07 Jan - 31 Jan Turkish Airlines direct
03 Jan - 13 Jan Turkish Airlines direct
01 Jan - 04 Jan Air France
04 Jan - 18 Jan Turkish Airlines direct
01 Jan - 04 Jan Turkish Airlines direct

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

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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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