GLA to DUB flight delays
4,158 flights · July 2024 – July 2026 · UK Civil Aviation Authority
74.59% of flights from Glasgow to Dublin arrived within 15 minutes of schedule over July 2024 – July 2026, across 4,158 flights. Ryanair was the most punctual airline on the route, at 76.83%.
74.59%
Arrived on time
Within 15 minutes of schedule
0.89%
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
The season swings this route hard. In April it ran 18.3 points more punctual than in December — 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 two directions do not behave alike. DUB to GLA arrives on time 6.4 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
The 2 airlines here are separated by under 4 points — close enough to call a tie. Choose on price and departure time.
Flights from Glasgow to Dublin run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over July 2024 – July 2026, Ryanair arrived on time most often on GLA to DUB. Aer Lingus was late most often. Flights ran closest to schedule in April and worst in December.
Every airline on GLA to DUB
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 |
|---|---|---|---|---|---|
| Aer Lingus | 2,464 | 73.02% | 1.46% | — | D |
| Ryanair | 1,693 | 76.83% | 0.06% | — | C |
| BA CityFlyer | 1 | 100% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
DUB to GLA Dublin back to Glasgow 80.96% on time CCommon questions
Are flights from Glasgow to Dublin usually delayed?
74.59% of flights on the GLA to DUB route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is about the same as the average route in this record.
Which airline is most on time from Glasgow to Dublin?
Ryanair, at 76.83% on time across 1,693 flights. The least punctual on the route was Aer Lingus at 73.02%.
How often are GLA to DUB flights cancelled?
0.89% of scheduled flights did not operate — about 9 in every thousand. That is in the normal range.
What is the best month to fly Glasgow to Dublin?
April, when 83.8% of flights arrived on time. The worst was December at 65.5%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on GLA to DUB during July 2024 – July 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 →