GCI to SOU flight delays
Saint Peter Port (GCI) Southampton (SOU)
1,373 flights · March 2025 – August 2026 · UK Civil Aviation Authority
70.78%
Arrived on time
Within 15 minutes of schedule
6.26%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
18 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Which airline you fly changes the odds here. Aurigny arrived on time 21 points more often than Blue Islands 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.
Cancellation, not delay, is the risk worth pricing here: 6.26% 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 April it ran 44.2 points more punctual than in September — 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 8.8 points more punctual than the earlier ones, which usually means a schedule that was too tight has been given more room.
Which airline should you fly on this route?
Over March 2025 – August 2026, Aurigny arrived on time most often on GCI to SOU. Blue Islands was late most often. Flights ran closest to schedule in March and worst in September.
Every airline on GCI to SOU
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 | 828 | 79.03% | 5.56% | — | D |
| Blue Islands | 545 | 58.02% | 7.34% | — | F |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on GCI to SOU 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 →