IAH to LGW flight delays
Houston, TX (IAH) London (LGW)
1 flights · July 2024 – July 2026 · US Bureau of Transportation Statistics and UK Civil Aviation Authority
This route flew fewer than 50 times in the period, which is too few for an on-time rate to mean anything. The figures below are shown as recorded, but the route is not graded.
0%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
21 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Flights from Houston to London arrive late more often than they arrive on time. At this rate lateness is the normal outcome, not the exception, and the schedule is better read as an aspiration than a plan.
This route does worse than its own airport. IAH as a whole runs 77.6 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.
Every airline on IAH to LGW
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 |
|---|---|---|---|---|---|
| Singapore Airlines | 1 | 0% | 0% | — | — |
Other routes from Houston
Common questions
Are flights from Houston to London usually delayed?
0% of flights on the IAH to LGW route arrived within 15 minutes of schedule, so roughly 10 in every ten arrived late. That is worse than the average route in this record.
How often are IAH to LGW flights cancelled?
0% of scheduled flights did not operate — about 1 in every thousand. That is in the normal range.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on IAH to LGW during July 2024 – July 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 →