STN to HEL flight delays
London (STN) Helsinki (Vantaa) (HEL)
225 flights · January 2025 – August 2026 · UK Civil Aviation Authority
80.44%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
9 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In February it ran 34.4 points more punctual than in June — 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 16.2 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.
This route does better than its own airport. Departures from STN overall run 8.3 points less punctual than this particular one — so whatever congestion STN has, this route is largely escaping it.
Only Ryanair 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 January 2025 – August 2026, Ryanair arrived on time most often on STN to HEL. Flights ran closest to schedule in February and worst in June.
Every airline on STN to HEL
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 |
|---|---|---|---|---|---|
| Ryanair | 200 | 80% | 0% | — | B |
| Ryanair UK | 25 | 84% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
HEL to STN Helsinki (Vantaa) back to London 79.11% on time COther routes from London
Common questions
Are flights from London to Helsinki (Vantaa) usually delayed?
80.44% of flights on the STN to HEL route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from London to Helsinki (Vantaa)?
Only Ryanair appears in the published record on this route, with 200 flights and 80% arriving on time.
How often are STN to HEL 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 London to Helsinki (Vantaa)?
February, when 94.4% of flights arrived on time. The worst was June at 60%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on STN to HEL 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 →