MAD to LHR flight delays
6,385 flights · March 2025 – August 2026 · UK Civil Aviation Authority
79.88%
Arrived on time
Within 15 minutes of schedule
0.89%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
10 min
Delay per flight
Averaged over every flight flown
What the record says about this route
This is one of the heavily flown routes in the record — 6,385 flights in the period. Frequency is itself a form of insurance: when a flight goes wrong there is another one within hours, which is not true of the thin routes elsewhere on this site.
The 2 airlines here are separated by under 1 point — close enough to call a tie. Choose on price and departure time.
The Madrid to London route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over March 2025 – August 2026, Iberia arrived on time most often on MAD to LHR. British Airways was late most often. Flights ran closest to schedule in November and worst in July.
Every airline on MAD to LHR
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Iberia | 3,879 | 80.2% | 0.64% | — | B |
| British Airways | 2,504 | 79.37% | 1.28% | — | C |
| BA Euroflyer | 2 | 100% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
LHR to MAD London back to Madrid 77.97% on time CWhat these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on MAD to LHR during March 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →