London Underground
London Underground ran 35,776 recorded passenger services from 6 Aug 2026 to 23 Sept 2026, of which 19 were cancelled. Arrival times reached the archive for too few of the rest to say anything about punctuality, so this is a record of what the operator ran.
Only 9,957 of the services that ran had an arrival time captured — 28% — spread across 49 archived days.
19 were cancelled, 0.1% of everything the operator had booked, against 2.4% across the network over the same dates.
Its worst day for cancellations was Thursday, 20 August 2026, when 5 of 772 booked services did not run — 1% of that day's timetable.
Volume ranged from 805 services on Wednesday, 16 September 2026 down to 376 on Sunday, 9 August 2026.
London Underground in numbers
| Archived days covered | 49 | 6 Aug 2026 to 23 Sept 2026 |
|---|---|---|
| Passenger trains recorded | 35,776 | |
| Share of the national timetable | 3.0% | of 1,203,226 over the same dates |
| Cancelled | 19 | 0.1% · network 2.4% |
| Arrival time recorded | 9,957 | 27.8% of those that ran |
Every percentage among the bands is of the 9,957 services whose arrival reached the archive, not of all 35,776, and the bands are exclusive. 25,800 ran without an arrival being recorded, and nothing is claimed about those. The row counting cancellations is those same 9,341 on-time arrivals over a denominator that also holds the 19 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. The same days across every operator.
In the daily longest-delay league
London Underground appears 6 times across 49 archived days, on 6 separate dates in the ten shown. These are appearances in the daily league, not this operator's own worst delays.
| Date | Service | Late by |
|---|---|---|
| 18 Aug 2026 | Elephant & Castle Underground to Harrow & Wealdstone 15:47 · 2J37 | 2h 07m |
| 7 Sept 2026 | Elephant & Castle Underground to Harrow & Wealdstone 19:16 · 2J34 | 2h 02m |
| 17 Sept 2026 | Elephant & Castle Underground to Stonebridge Park 16:32 · 2I10 | 1h 56m |
| 16 Sept 2026 | Elephant & Castle Underground to Stonebridge Park 21:59 · 2I27 | 1h 42m |
| 10 Aug 2026 | Elephant & Castle Underground to Stonebridge Park 21:29 · 2I41 | 1h 36m |
| 22 Sept 2026 | Tower Hill Underground to Upminster Underground 07:17 · 2O03 | 1h 21m |
Recorded live from the Darwin and TRUST feeds on each of the 49 days above,
and aggregated here. LT is this operator's ATOC code. How these figures are measured · All operators · Sources and licences