ACE to LGW flight delays
San Bartolomé (ACE) London (LGW)
1,899 flights · March 2025 – August 2026 · UK Civil Aviation Authority
61.09%
Arrived on time
Within 15 minutes of schedule
0.79%
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 November it ran 32.2 points more punctual than in March — 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.
Which airline you fly changes the odds here. easyJet arrived on time 7.3 points more often than TUI Airways over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
This is a late route. Flights from San Bartolomé to London miss their scheduled arrival often enough that a tight connection at the far end is a connection at risk.
The two directions do not behave alike. LGW to ACE arrives on time 11.3 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 March 2025 – August 2026, easyJet arrived on time most often on ACE to LGW. TUI Airways was late most often. Flights ran closest to schedule in November and worst in September.
Every airline on ACE 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 |
|---|---|---|---|---|---|
| easyJet | 1,173 | 64.06% | 0.85% | — | D |
| BA Euroflyer | 485 | 57.11% | 0% | — | F |
| TUI Airways | 211 | 56.73% | 1.42% | — | F |
| Jet2 | 28 | 39.29% | 0% | — | — |
| British Airways | 2 | — | 100% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
LGW to ACE London back to San Bartolomé 72.38% on time COther routes from San Bartolomé
Common questions
Are flights from San Bartolomé to London usually delayed?
61.09% of flights on the ACE to LGW route arrived within 15 minutes of schedule, so roughly 4 in every ten arrived late. That is worse than the average route in this record.
Which airline is most on time from San Bartolomé to London?
easyJet, at 64.06% on time across 1,173 flights. The least punctual on the route was TUI Airways at 56.73%.
How often are ACE to LGW flights cancelled?
0.79% of scheduled flights did not operate — about 8 in every thousand. That is in the normal range.
What is the best month to fly San Bartolomé to London?
November, when 78.3% of flights arrived on time. The worst was March at 46.1%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on ACE 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 →