Great Northern
Great Northern appears on 49 archived days from 6 Aug 2026 to 23 Sept 2026, running 416 services a day. 81% of its recorded arrivals were within five minutes, which is below the network as a whole.
12,247 arrivals were recorded across the window, 9,874 of them within five minutes and 133 more than half an hour late. At this volume a single badly delayed working is worth a visible fraction of a percentage point.
Its week is strongly peaked: 809 services on Sunday, 30 August 2026 against 229 on Sunday, 16 August 2026, a swing of 3.5 times.
The average delay at destination was 3.1 minutes. The worst single arrival recorded was 2h 46m behind schedule, London Kings Cross to Ely on Tuesday, 8 September 2026.
The day-to-day spread is wide — 40 points between its best day, Sunday, 13 September 2026 at 97%, and its worst, Tuesday, 15 September 2026 at 57%.
919 services were cancelled, 4.5% of everything booked — above the 2.4% the network cancelled over the same dates. The worst single day was Saturday, 12 September 2026, at 21% of that day's timetable.
Counting those cancellations as failures, the way the industry's own measure does, takes the on-time share from 81% of recorded arrivals to 75% of everything booked whose outcome is known — 5.6 points.
Ranked on on-time share of recorded arrivals against the 30 operators with enough of them to compare, Great Northern comes 22nd.
Great Northern in numbers
| Archived days covered | 49 | 6 Aug 2026 to 23 Sept 2026 |
|---|---|---|
| Passenger trains recorded | 20,387 | |
| Share of the national timetable | 1.7% | of 1,203,226 over the same dates |
| Cancelled | 919 | 4.5% · network 2.4% |
| Arrival time recorded | 12,247 | 62.9% of those that ran |
| …arrived within 5 minutes | 9,874 | 80.6% |
| …arrived 5 to 30 minutes late | 2,240 | 18.3% |
| …arrived more than 30 minutes late | 133 | 1.1% |
| Average delay at destination | 3.1 min | |
| On time, counting cancellations | 75.0% | of the 13,166 booked services whose outcome is known · network 84% |
| Network, same dates | 87% | on time, against this operator's 81% |
Every percentage among the bands is of the 12,247 services whose arrival reached the archive, not of all 20,387, and the bands are exclusive. 7,221 ran without an arrival being recorded, and nothing is claimed about those. The row counting cancellations is those same 9,874 on-time arrivals over a denominator that also holds the 919 trains that did not run at all. Delay is judged at the destination, a stricter test than the industry's own measure and not comparable with it. The on-time share and the average delay answer different questions.
Day by day
49 archived days, 6 Aug 2026 to 23 Sept 2026, widest bar the busiest, filled to the share that arrived within five minutes. The same days across every operator.
In the daily longest-delay league
Great Northern appears 7 times across 49 archived days, on 5 separate dates in the ten shown. These are appearances in the daily league, not this operator's own worst delays.
| Date | Service | Late by |
|---|---|---|
| 8 Sept 2026 | London Kings Cross to Ely 11:24 · 1T24 | 2h 46m |
| 24 Aug 2026 | Moorgate to Stevenage 16:41 · 2F46 | 2h 25m |
| 18 Sept 2026 | London Kings Cross to Letchworth Garden City 10:06 · 2L18 | 2h 22m |
| 26 Aug 2026 | London Kings Cross to Ely 12:24 · 1T28 | 2h 16m |
| 26 Aug 2026 | London Kings Cross to Ely 11:24 · 1T24 | 1h 59m |
| 24 Aug 2026 | Welwyn Garden City to Moorgate 16:53 · 2K51 | 1h 53m |
| 11 Sept 2026 | Kings Lynn to London Kings Cross 10:41 · 1T25 | 1h 39m |
Recorded live from the Darwin and TRUST feeds on each of the 49 days above,
and aggregated here. GN is this operator's ATOC code. How these figures are measured · All operators · Sources and licences