How reliable is Southampton Airport?
Flights from SOU avoided significant airline-controlled delay in 74% of 65,354 flights in official UK CAA history. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Origin-airport operations
What the airline-controlled delay record at SOU looks like
Avoided 15+ min controlled delay
across 65,354 flights
Source: UK CAA. Origin-grouped, cause-attributed operational history; it is not a direct departure-punctuality measure or a guarantee for any flight.
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Weather by month
Weather history isn’t available for SOU yet
PlaneSane shows month-by-month airport weather once enough historical METAR/IEM observations are loaded for the airport. This does not mean the airport has no weather data forever; it means the current climatology table has no monthly coverage for Southampton Airport.
The read on SOU
What the numbers say about flying through Southampton Airport
Across official performance history, flights from Southampton avoided significant airline-controlled delay about 74% of the time over 65,354 flights. That's a middling record — neither a strength nor a red flag on its own. Pair it with an elevated cancellation rate of 2.9% — worth weighing alongside the on-time figure. When a departure does run late, the typical delay is around 15 minutes.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Southampton, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about SOU
- How reliable is Southampton Airport (SOU)?
- Flights from Southampton avoided significant airline-controlled delay roughly 74% of the time across 65,354 flights of official history — a middling record — neither a strength nor a red flag on its own. The cancellation rate runs about 2.9%. It's advisory context, not a guarantee for any single flight.
Planning a trip through Southampton?
Score real flights to and from SOU on reliability, weather, and connection safety — not just price.