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Bus route H11

Transport
H11
Usually an Alexander Dennis Adl Enviro 200 Mmc.

48% on timeof departures in the week ending 17 October 2026, leaving no more than 2.5 minutes early or 5 minutes late. Half of London's timetabled routes managed 73% or better.

The last week, day by day
Share of departures leaving on time.

Watch a day of route H11’s buses: every bus, replayed on the map. Or click a day on the chart.

The weekly figures

The share of departures that left on time.

Week endingHarrow Bus StationMount Vernon Hospital
21 Jun 2025no datano data
28 Jun 202548%54%
5 Jul 202541% thin63% thin
12 Jul 202561% thin82% thin
19 Jul 202560%71%
26 Jul 202542%76%
2 Aug 202549%75%
9 Aug 202556%69%
16 Aug 202556%69%
23 Aug 202546%66%
30 Aug 202544%74%
6 Sept 202567%67%
13 Sept 202530%46%
20 Sept 202548%45%
27 Sept 202545%58%
4 Oct 202540%63%
11 Oct 202542%82%
18 Oct 202579%65%
25 Oct 202567%88%
1 Nov 202548%74%
8 Nov 202551%74%
15 Nov 202566% thin65% thin
22 Nov 202550% thin69% thin
29 Nov 202560%83%
6 Dec 202563%67%
13 Dec 202546%69%
20 Dec 202544%78%
27 Dec 202550% thin80% thin
3 Jan 202663%93%
10 Jan 202666%79%
17 Jan 202646%71%
24 Jan 202661%68%
31 Jan 202654%90%
7 Feb 202650%80%
14 Feb 202660%77%
21 Feb 2026no datano data
28 Feb 2026no datano data
7 Mar 202654%73%
14 Mar 202644%82%
21 Mar 202640%74%
28 Mar 202663%74%
4 Apr 202652%77%
11 Apr 202661%71%
18 Apr 202671%69%
25 Apr 202648% thin50% thin
2 May 202653%58%
9 May 202655%66%
16 May 202650%75%
23 May 202639%58%
30 May 202651%50%
6 Jun 202649%63%
13 Jun 202644%74%
20 Jun 202652%57%
27 Jun 202654%56%
4 Jul 2026no datano data
11 Jul 202653%75%
18 Jul 202642%72%
25 Jul 202655%83%
1 Aug 2026no datano data
8 Aug 2026no datano data
15 Aug 2026no datano data
22 Aug 2026no datano data
29 Aug 2026no datano data
5 Sept 202645%81%
12 Sept 202635%70%
19 Sept 202647%77%
26 Sept 202656%80%
3 Oct 202650%73%
10 Oct 202661%76%
17 Oct 202646%50%

A passenger going by the timetable at Harrow Bus Station would find about five departures in ten leaving more than 2.5 minutes early or 5 minutes late.

Harrow Bus Station
On time
46%
Cut short
0.0%
Mount Vernon Hospital
On time
50%
Cut short
1.4%

59 minutes was the longest gap between buses this week, at Northwood Station towards Mount Vernon Hospital, on Tuesday 13 October from 10:00 to 10:59. This excludes any gaps caused by holes in our own data. Watch it happen →

Journeys cut short

Last week: 1.2% of journeys were turned back before the end of the line in the week ending 17 October 2026. Everyone on board has to get off; for anyone waiting further along the route it's effectively a cancellation.

towards Harrow Bus Station

Last week, 2 of 457 journeys (0%) were turned short.

  • Lascelles Avenue1.0 km short of the end 1
  • Pinner Library5.0 km short of the end 1

towards Mount Vernon Hospital

Last week, 9 of 446 journeys (2%) were turned short.

  • Northwood Station1.8 km short of the end 5
  • Love Lane5.8 km short of the end 3
  • Northwood School3.8 km short of the end 1

Each place is the last stop the bus was timed at before it turned round, with the typical distance it fell short of the end of the line. The five busiest are named; the rest are counted together.

Compared with TfL's own figures

QuarterTfLOurs
2025/26 Q313 Sept – 2 Jan 202679% on timeno figure
2026/27 Q11 Apr – 26 Jun 202672% on timeno figure

TfL's figures come from its own tracking equipment and its own timetable; mine are computed from the buses' public position feed. They are the same calculation on independent data, so they should broadly agree and move together rather than match exactly.

About this data
Data collected, week ending 17 October 2026
100% of the week. This is the share of the week for which we hold bus location data at all, across the whole of London rather than for this route. A week under 60% is not published; under 90% it is marked as thin.
Departures observed
  • Harrow Bus Station: 306 departures seen
  • Mount Vernon Hospital: 280 departures seen
A guide to how much evidence sits behind this week's figures, not a measure of the service.
How it is measured
Every day, 05:00–23:59. On time means leaving no more than 2.5 minutes early or 5 minutes late. A day with less than four hours of data collected shows no daily figure. How these figures are made.
Gaps in the record for this period (39)

Most recent first. Hover a week on the chart and it will name the gap behind it. Most are a few missing hours on an otherwise ordinary day.

  • 17 Sept 2026 partial day, no data 12:00-12:59: our collector was down (machine off or power cut)
  • 28 Aug 2026 partial day, no data 20:00-23:59: our collector was down (machine off or power cut)
  • 29 Jul – 26 Aug 2026 no collection: the volunteer BODS archive was down and our own collector had not yet started
  • 28 Jul 2026 partial day, no data 11:00-23:59: no collection: the volunteer BODS archive was down and our own collector had not yet started
  • 7 Jul 2026 partial day, no data 15:00-15:59: gap in the volunteer BODS archive (its collector was down)
  • 5 Jul 2026 partial day, no data 06:00-11:59: gap in the volunteer BODS archive (its collector was down)
  • 4 Jul 2026 partial day, no data 06:00-21:59: gap in the volunteer BODS archive (its collector was down)
  • 2 Jul – 3 Jul 2026 gap in the volunteer BODS archive (its collector was down)
  • 8 Jun 2026 partial day, no data 07:00-08:59: gap in the volunteer BODS archive (its collector was down)
  • 7 Jun 2026 partial day, no data 12:00-12:59, 18:00-19:59: gap in the volunteer BODS archive (its collector was down)
  • 6 Jun 2026 partial day, no data 12:00-12:59, 16:00-16:59, 18:00-18:59: gap in the volunteer BODS archive (its collector was down)
  • 27 Apr 2026 partial day, no data 12:00-12:59: gap in the volunteer BODS archive (its collector was down)
  • 21 Apr 2026 partial day, no data 06:00-11:59: gap in the volunteer BODS archive (its collector was down)
  • 20 Apr 2026 partial day, no data 15:00-23:59: gap in the volunteer BODS archive (its collector was down)
  • 16 Apr 2026 partial day, no data 12:00-15:59: gap in the volunteer BODS archive (its collector was down)
  • 28 Feb 2026 partial day, no data 06:00-18:59: gap in the volunteer BODS archive (its collector was down)
  • 16 Feb – 27 Feb 2026 gap in the volunteer BODS archive (its collector was down)
  • 15 Feb 2026 partial day, no data 16:00-23:59: gap in the volunteer BODS archive (its collector was down)
  • 30 Jan 2026 partial day, no data 20:00-23:59: gap in the volunteer BODS archive (its collector was down)
  • 25 Dec 2025 no bus service on Christmas Day
  • 23 Dec 2025 partial day, no data 06:00-07:59: gap in the volunteer BODS archive (its collector was down)
  • 5 Dec 2025 partial day, no data 06:00-08:59: gap in the volunteer BODS archive (its collector was down)
  • 24 Nov 2025 partial day, no data 17:00-17:59: gap in the volunteer BODS archive (its collector was down)
  • 17 Nov 2025 partial day, no data 06:00-09:59: gap in the volunteer BODS archive (its collector was down)
  • 15 Nov – 16 Nov 2025 no London vehicles in the national feed — TfL's export to BODS was down (the volunteer archive itself was collecting)
  • 14 Nov 2025 partial day, no data 06:00-07:59, 13:00-23:59: gap in the volunteer BODS archive (its collector was down)
  • 31 Oct 2025 partial day, no data 06:00-07:59: gap in the volunteer BODS archive (its collector was down)
  • 17 Oct 2025 partial day, no data 06:00-07:59: gap in the volunteer BODS archive (its collector was down)
  • 10 Oct 2025 partial day, no data 06:00-08:59: gap in the volunteer BODS archive (its collector was down)
  • 3 Oct 2025 partial day, no data 06:00-11:59: gap in the volunteer BODS archive (its collector was down)
  • 19 Sept 2025 partial day, no data 06:00-08:59: gap in the volunteer BODS archive (its collector was down)
  • 5 Sept 2025 partial day, no data 06:00-09:59: gap in the volunteer BODS archive (its collector was down)
  • 1 Aug 2025 partial day, no data 06:00-09:59: gap in the volunteer BODS archive (its collector was down)
  • 18 Jul 2025 partial day, no data 06:00-09:59: gap in the volunteer BODS archive (its collector was down)
  • 8 Jul 2025 partial day, no data 06:00-08:59: gap in the volunteer BODS archive (its collector was down)
  • 6 Jul – 7 Jul 2025 gap in the volunteer BODS archive (its collector was down)
  • 5 Jul 2025 partial day, no data 18:00-23:59: gap in the volunteer BODS archive (its collector was down)
  • 4 Jul 2025 partial day, no data 06:00-14:59: gap in the volunteer BODS archive (its collector was down)
  • 25 Jun 2025 partial day, no data 06:00-11:59: gap in the volunteer BODS archive (its collector was down)

For latest timetable and route information, see TfL's official page.

Contains public sector information licensed under the Open Government Licence v3.0; bus data via the DfT Bus Open Data Service and Transport for London. Figures are computed from observed bus positions, every day, 05:00–23:59. How these figures are made. Bus positions from the Department for Transport’s Bus Open Data Service (BODS); the Department for Transport cannot warrant the accuracy or quality of the data published there. Positions before September 2026 come from the Bus Open Data archive generously built and kept by Open Innovations, with thanks. Route lines and stops: Powered by TfL Open Data. Contains OS data © Crown copyright and database rights 2016. Geomni UK Map data © and database rights [2019]. These pages and the bus replay are built independently from open data: Transport for London, the Department for Transport and the bus operators had no part in making them, and none of them endorses them. Not for planning a journey.