BA856 LondonLHR · 17:05 PraguePRG · 20:35
BA856 by British Airways flies from London (LHR) to Prague (PRG) for the Mon, Sep 7 departure.
departs LHR · on schedule
board checked 5m ago · checking again in 45s
Where the minutes go
last 3 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
Measured, 90-day sampleConditions at LHR and PRG 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 London to Prague flights today
same route · British AirwaysIf BA856 is cancelled, these are the other British Airways nonstop flights from London to Prague on the same day, with scheduled departure times in LHR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How BA856 actually runs
Pro Flight Search has tracked every published board update for BA856 across the LHR and PRG boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left noticeably late (~29 min) but landed about 11 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how BA856 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 LHR and PRG published them.
Planning around BA856? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — BA856 London to Prague on-time performance, measured from the LHR and PRG airport boards.
https://proflightsearch.com/flight/BA856
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