LHR to IOM flight delays
420 flights · January 2025 – August 2026 · UK Civil Aviation Authority
76.81%
Arrived on time
Within 15 minutes of schedule
1.43%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
13 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In June it ran 25.4 points more punctual than in June — 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. IOM to LHR arrives on time 9.8 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.
Only Loganair flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
This is a thin route — 420 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
Which airline should you fly on this route?
Over January 2025 – August 2026, Loganair arrived on time most often on LHR to IOM. Flights ran closest to schedule in February and worst in April.
Every airline on LHR to IOM
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 |
|---|---|---|---|---|---|
| Loganair | 420 | 76.81% | 1.43% | — | C |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
IOM to LHR Castletown back to London 86.57% on time BOther routes from London
Common questions
Are flights from London to Castletown usually delayed?
76.81% of flights on the LHR to IOM route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from London to Castletown?
Only Loganair appears in the published record on this route, with 420 flights and 76.81% arriving on time.
How often are LHR to IOM flights cancelled?
1.43% of scheduled flights did not operate — about 14 in every thousand. That is in the normal range.
What is the best month to fly London to Castletown?
June, when 86.4% of flights arrived on time. The worst was June at 61%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on LHR to IOM 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 →