TK20 IstanbulIST · 17:00 SeoulICN · 08:35
TK20 by Turkish Airlines flies from Istanbul (IST) to Seoul (ICN) for the Thu, Sep 17 departure.
en route from IST to ICN
board checked 2m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 17:20. No receiver coverage over open ocean.
Where the minutes go
last 6 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival +15 min · 0 cancelled · 6 operations tracked
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Early read, sample still buildingDriven mainly by IST (Istanbul), currently flying MVFR (marginal visual). For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
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 Seoul flights today
same route · Turkish AirlinesIf TK20 is cancelled, this is the other Turkish Airlines nonstop flight from Istanbul to Seoul 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 TK20 actually runs
Pro Flight Search has tracked every published board update for TK20 across the IST and ICN boards: schedule changes, gate pushes and actual clocks. Usually lands ~15 min late. Based on 6 confirmed landings · 4/6 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how TK20 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 ICN published them.
Planning around TK20? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — TK20 Istanbul to Seoul on-time performance, measured from the IST and ICN airport boards.
https://proflightsearch.com/flight/TK20
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