IB721 MadridMAD · 15:45 LondonLHR · 17:15
IB721 by Iberia flies from Madrid (MAD) to London (LHR) for the Tue, Sep 8 departure.
today's MAD → LHR operation will not depart
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 MAD and LHR 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 Madrid to London flights today
same route · IberiaIf IB721 is cancelled, these are the other Iberia nonstop flights from Madrid to London on the same day, with scheduled departure times in MAD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How IB721 actually runs
Pro Flight Search has tracked every published board update for IB721 across the MAD and LHR boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left a little late (~8 min) but landed about 12 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how IB721 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 MAD and LHR published them.
Planning around IB721? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — IB721 Madrid to London on-time performance, measured from the MAD and LHR airport boards.
https://proflightsearch.com/flight/IB721
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