LHR to MAA flight delays
204 flights · January 2025 – August 2026 · UK Civil Aviation Authority
69.65%
Arrived on time
Within 15 minutes of schedule
1.47%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
16 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In May it ran 38.8 points more punctual than in January — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The two directions do not behave alike. MAA to LHR arrives on time 15.8 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
The route has been getting better. The later months in the record run 12.4 points more punctual than the earlier ones, which usually means a schedule that was too tight has been given more room.
This route does worse than its own airport. LHR as a whole runs 9.1 points more punctual than these flights, which points at something specific to the route — the time of day it is scheduled, or the aircraft that feed it — rather than the airport.
Which airline should you fly on this route?
Over January 2025 – August 2026, British Airways arrived on time most often on LHR to MAA. Flights ran closest to schedule in May and worst in January.
Every airline on LHR to MAA
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 |
|---|---|---|---|---|---|
| British Airways | 204 | 69.65% | 1.47% | — | D |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
MAA to LHR Chennai back to London 85.5% on time BOther routes from London
Common questions
Are flights from London to Chennai usually delayed?
69.65% of flights on the LHR to MAA route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from London to Chennai?
Only British Airways appears in the published record on this route, with 204 flights and 69.65% arriving on time.
How often are LHR to MAA flights cancelled?
1.47% of scheduled flights did not operate — about 15 in every thousand. That is in the normal range.
What is the best month to fly London to Chennai?
May, when 87.1% of flights arrived on time. The worst was January at 48.3%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on LHR to MAA during January 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 →