JFK to LGW flight delays
New York, NY (JFK) London (LGW)
174 flights · March 2025 – August 2026 · US Bureau of Transportation Statistics and UK Civil Aviation Authority
48.81%
Arrived on time
Within 15 minutes of schedule
3.45%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
35 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In September it ran 36.1 points more punctual than in July — 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.
Cancellation, not delay, is the risk worth pricing here: 3.45% of scheduled flights never operated. A late flight still gets you there. A cancelled one leaves you rebooking, and on a route with few daily departures that can mean losing a day.
Flights from New York 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. JFK as a whole runs 29 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 March 2025 – August 2026, British Airways arrived on time most often on JFK to LGW. Flights ran closest to schedule in April and worst in July.
Every airline on JFK 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 |
|---|---|---|---|---|---|
| British Airways | 174 | 48.81% | 3.45% | — | F |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
LGW to JFK London back to New York 58.58% on time FOther routes from New York
Common questions
Are flights from New York to London usually delayed?
48.81% of flights on the JFK to LGW route arrived within 15 minutes of schedule, so roughly 5 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from New York to London?
Only British Airways appears in the published record on this route, with 174 flights and 48.81% arriving on time.
How often are JFK to LGW flights cancelled?
3.45% of scheduled flights did not operate — about 35 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly New York to London?
September, when 73.1% of flights arrived on time. The worst was July at 37%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on JFK to LGW 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 →