TK203 IstanbulIST · 15:00 SeattleSEA · 17:20
TK203 by Turkish Airlines flies from Istanbul (IST) to Seattle (SEA) for the Wed, Sep 23 departure.
estimated arrival at SEA · local time · ~8h 52m from now
board checked 6m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 15:00. No receiver coverage over open ocean.
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IST and SEA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Istanbul to Seattle flights today
same route · Turkish AirlinesIf TK203 is cancelled, this is the other Turkish Airlines nonstop flight from Istanbul to Seattle on the same day, with scheduled departure times in IST local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How TK203 actually runs
Pro Flight Search has tracked every published board update for TK203 across the IST and SEA boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 4 confirmed departures · 4/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how TK203 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as IST and SEA published them.
Planning around TK203? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — TK203 Istanbul to Seattle on-time performance, measured from the IST and SEA airport boards.
https://proflightsearch.com/flight/TK203
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