ACE to BFS flight delays
San Bartolomé (ACE) Belfast (BFS)
294 flights · January 2025 – August 2026 · UK Civil Aviation Authority
72.79%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
16 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 35.8 points more punctual than in January — 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 route has been getting better. The later months in the record run 18.4 points more punctual than the earlier ones, which usually means a schedule that was too tight has been given more room.
Only Jet2 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 — 294 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, Jet2 arrived on time most often on ACE to BFS. Flights ran closest to schedule in June and worst in January.
Every airline on ACE to BFS
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 |
|---|---|---|---|---|---|
| Jet2 | 139 | 76.98% | 0% | — | C |
| easyJet | 70 | 80% | 0% | — | — |
| Ryanair UK | 64 | 54.69% | 0% | — | — |
| TUI Airways | 21 | 76.19% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
BFS to ACE Belfast back to San Bartolomé 77.7% on time COther routes from San Bartolomé
Common questions
Are flights from San Bartolomé to Belfast usually delayed?
72.79% of flights on the ACE to BFS route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from San Bartolomé to Belfast?
Only Jet2 appears in the published record on this route, with 139 flights and 76.98% arriving on time.
How often are ACE to BFS flights cancelled?
0% of scheduled flights did not operate — about 1 in every thousand. That is in the normal range.
What is the best month to fly San Bartolomé to Belfast?
June, when 88.1% of flights arrived on time. The worst was January at 52.3%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on ACE to BFS 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 →