SOU to ACI flight delays
Southampton (SOU) Saint Anne (ACI)
687 flights · March 2025 – August 2026 · UK Civil Aviation Authority
73.09%
Arrived on time
Within 15 minutes of schedule
12.37%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
26 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Cancellation, not delay, is the risk worth pricing here: 12.37% 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.
The season swings this route hard. In September it ran 68 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.
The route has been getting worse. The later months run 10.8 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.
Only Aurigny 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.
Which airline should you fly on this route?
Over March 2025 – August 2026, Aurigny arrived on time most often on SOU to ACI. Flights ran closest to schedule in September and worst in January.
Every airline on SOU to ACI
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 |
|---|---|---|---|---|---|
| Aurigny | 687 | 73.09% | 12.37% | — | F |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ACI to SOU Saint Anne back to Southampton 72.21% on time FOther routes from Southampton
Common questions
Are flights from Southampton to Saint Anne usually delayed?
73.09% of flights on the SOU to ACI 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 Southampton to Saint Anne?
Only Aurigny appears in the published record on this route, with 687 flights and 73.09% arriving on time.
How often are SOU to ACI flights cancelled?
12.37% of scheduled flights did not operate — about 124 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly Southampton to Saint Anne?
September, when 84.7% of flights arrived on time. The worst was March at 16.7%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on SOU to ACI 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 →