Thameslink

Thameslink recorded 85,159 services from 6 Aug 2026 to 7 Nov 2026 and cancelled 2,618 of them. Of those whose arrival was captured, 84% were within five minutes — below the national figure for the same days.

Over 94 archived days that is 906 services a day, 3.6% of the national timetable. Of 46,815 recorded arrivals, 39,269 were within five minutes and 403 were more than half an hour down.

Its week is strongly peaked: 995 services on Friday, 2 October 2026 against 529 on Sunday, 27 September 2026, a swing of 1.9 times.

The average delay at destination was 2.3 minutes. The worst single arrival recorded was 9h 14m behind schedule, Sutton (London) to Bedford on Wednesday, 2 September 2026.

The day-to-day spread is wide — 32 points between its best day, Sunday, 18 October 2026 at 94%, and its worst, Wednesday, 26 August 2026 at 63%.

2,618 services were cancelled, 3.1% of everything booked — above the 2.3% the network cancelled over the same dates. The worst single day was Sunday, 16 August 2026, at 9% of that day's timetable.

Counting those cancellations as failures, the way the industry's own measure does, takes the on-time share from 84% of recorded arrivals to 79% of everything booked whose outcome is known — 4.4 points.

Ranked on on-time share of recorded arrivals against the 34 operators with enough of them to compare, Thameslink comes 19th.

Thameslink in numbers

Every percentage among the bands is of the 46,815 services whose arrival reached the archive, not of all 85,159, and the bands are exclusive. 35,726 ran without an arrival being recorded, and nothing is claimed about those. The row counting cancellations is those same 39,269 on-time arrivals over a denominator that also holds the 2,618 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

94 archived days, 6 Aug 2026 to 7 Nov 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

Thameslink appears 28 times across 94 archived days, on 5 separate dates in the ten shown. These are appearances in the daily league, not this operator's own worst delays.

Recorded live from the Darwin and TRUST feeds on each of the 94 days above, and aggregated here. TL is this operator's ATOC code. How these figures are measured · All operators · Sources and licences