LSI to GLA flight delays
514 flights · March 2025 – August 2026 · UK Civil Aviation Authority
69.2%
Arrived on time
Within 15 minutes of schedule
5.25%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
15 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: 5.25% 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 47.5 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.
Only Loganair 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.
Flights from Lerwick to Glasgow run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over March 2025 – August 2026, Loganair arrived on time most often on LSI to GLA. Flights ran closest to schedule in September and worst in January.
Every airline on LSI to GLA
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 |
|---|---|---|---|---|---|
| Loganair | 514 | 69.2% | 5.25% | — | D |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
GLA to LSI Glasgow back to Lerwick 72.27% on time DOther routes from Lerwick
Common questions
Are flights from Lerwick to Glasgow usually delayed?
69.2% of flights on the LSI to GLA 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 Lerwick to Glasgow?
Only Loganair appears in the published record on this route, with 514 flights and 69.2% arriving on time.
How often are LSI to GLA flights cancelled?
5.25% of scheduled flights did not operate — about 53 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly Lerwick to Glasgow?
September, when 87.5% of flights arrived on time. The worst was January at 40%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on LSI to GLA 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 →