IB721 MadridMAD · 15:50 LondonLHR · 17:15
IB721 by Iberia flies from Madrid (MAD) to London (LHR) for the Thu, Oct 29 departure.
estimated arrival at LHR · local time · ~15 min from now
board checked 6m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 17:38.
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
Measured, 90-day sampleConditions 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. These figures come from both airports' records 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 →
Tomorrow on this route
ForecastMadrid to London with Iberia · Fri 30 Oct, local date
- Chance a departure leaves 60+ min late
- 5.1%1.3× usual
Forecast weather: 28% chance of fog at London
No cancellation outlook here: this airport's board does not publish cancellations reliably.
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 8 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
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 that show a delay still operate. Rebooking usually helps only when that delay is very large. 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. Usually lands ~13 min early. Based on 3 confirmed landings · 3/3 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 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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