TK421 IstanbulIST · 21:05 MoscowVKO
TK421 by Turkish Airlines flies from Istanbul (IST) to Moscow (VKO).
scheduled from IST
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 operation0 cancelled · 6 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Istanbul to Moscow flights today
same route · Turkish AirlinesIf TK421 is cancelled, these are the other Turkish Airlines nonstop flights from Istanbul to Moscow 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 TK421 actually runs
Pro Flight Search has tracked every published board update for TK421 across the IST and VKO boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 6 confirmed departures · 5/6 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how TK421 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 VKO published them.
Planning around TK421? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — TK421 Istanbul to Moscow on-time performance, measured from the IST and VKO airport boards.
https://proflightsearch.com/flight/TK421
.