YYZ to LGW flight delays
226 flights · January 2025 – August 2026 · UK Civil Aviation Authority
54.91%
Arrived on time
Within 15 minutes of schedule
0.88%
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
The season swings this route hard. In April it ran 55.4 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.
Flights from Toronto 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.
The route has been getting worse. The later months run 21.1 points less punctual than the earlier ones. A drift of that size is rarely weather; it is more often an airline adding frequencies faster than the airports can absorb them.
The two directions do not behave alike. LGW to YYZ arrives on time 18.3 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.
Which airline should you fly on this route?
Over January 2025 – August 2026, Air Transat arrived on time most often on YYZ to LGW. Flights ran closest to schedule in April and worst in May.
Every airline on YYZ 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 |
|---|---|---|---|---|---|
| Air Transat | 226 | 54.91% | 0.88% | — | F |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
LGW to YYZ London back to Toronto 73.21% on time DOther routes from Toronto
Common questions
Are flights from Toronto to London usually delayed?
54.91% of flights on the YYZ 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 Toronto to London?
Only Air Transat appears in the published record on this route, with 226 flights and 54.91% arriving on time.
How often are YYZ to LGW flights cancelled?
0.88% of scheduled flights did not operate — about 9 in every thousand. That is in the normal range.
What is the best month to fly Toronto to London?
April, when 90.3% of flights arrived on time. The worst was June at 34.9%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on YYZ to LGW 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 →