TK1242 LondonSTN · 10:50 IstanbulIST · 16:45
TK1242 by Turkish Airlines flies from London (STN) to Istanbul (IST).
scheduled from STN
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
Early read, sample still buildingConditions at STN and IST 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. 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 London to Istanbul flights today
same route · Turkish AirlinesIf TK1242 is cancelled, these are the other Turkish Airlines nonstop flights from London to Istanbul on the same day, with scheduled departure times in STN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How TK1242 actually runs
Pro Flight Search has tracked every published board update for TK1242 across the STN and IST boards: schedule changes, gate pushes and actual clocks. Usually lands ~35 min early. Based on 4 confirmed landings · 4/4 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how TK1242 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 STN and IST published them.
Planning around TK1242? 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 — TK1242 London to Istanbul on-time performance, measured from the STN and IST airport boards.
https://proflightsearch.com/flight/TK1242
.