Turkish AirlinesTK20% on time
live
Direct flights from Istanbul (IST) to Seattle (SEA): 7 nonstop departures observed each week across 1 airline. 20% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 40 minutes late. No cancellations were recorded across the 5 tracked flights. The nonstop covers 9,745 km, an estimated 13 hours 0 minutes in the air. Measured by Pro Flight Search from live flight boards at Istanbul and Seattle. Updated 6 September 2026 at 21:23 UTC.
IST
Istanbul
smooth · +0
SEA
Seattle
smooth · +0
9,745 km · ~13h 00m est.
Runs rough · 1 airline · 7x weekly · nonstop
20% on time
of the last 5 operated IST → SEA flights arrived within 15 minutes
Median arrival delay is +40 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+40 minacross the last 5 operated legs
Flight time~13h 00mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Turkish Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at SEA: 28% odds of a 15+ minute delay, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Istanbul to Seattle route actually runs
Pro Flight Search records official board updates for nonstop IST to SEA flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Istanbul (IST) to Seattle (SEA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/IST-SEA
IST to SEA questions
Is IST–SEA running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IST–SEA?
Operators schedule morning departures around 08:10 from IST. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SEA delay card to confirm conditions when you'd arrive.
How long is the flight from IST to SEA?
Great-circle distance is 9,745 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 718–865 min gate-to-gate on this route.
How often does IST–SEA fly?
Turkish Airlines runs the route with about 9 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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