UL503 ColomboCMB LondonLHR · 20:00
UL503 by Sri Lankan Airlines flies from Colombo (CMB) to London (LHR) for the Fri, Sep 25 departure.
arrival expected at LHR · 12 min late
board checked 31m ago · checking again in 45s
Where the minutes go
last 7 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 +7 min · 0 cancelled · 14 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How UL503 actually runs
Pro Flight Search has tracked every published board update for UL503 across the CMB and LHR boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min late. Based on 13 confirmed landings · 12/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UL503 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 CMB and LHR published them.
Planning around UL503? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UL503 Colombo to London on-time performance, measured from the CMB and LHR airport boards.
https://proflightsearch.com/flight/UL503
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