BY4423 DubrovnikDBV · 10:55 LondonLGW · 12:50
BY4423 by TUI Airways flies from Dubrovnik (DBV) to London (LGW).
scheduled from DBV
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at DBV and LGW 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 Dubrovnik to London flights
same route · TUI AirwaysIf BY4423 is cancelled, these are the other TUI Airways nonstop flights from Dubrovnik to London, with scheduled departure times in DBV local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How BY4423 actually runs
Pro Flight Search has tracked every published board update for BY4423 across the DBV and LGW boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: left a little late (~19 min) but landed about 24 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how BY4423 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 DBV and LGW published them.
Planning around BY4423? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — BY4423 Dubrovnik to London on-time performance, measured from the DBV and LGW airport boards.
https://proflightsearch.com/flight/BY4423
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