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Bus route 117

Transport
117
Usually an Alexander Dennis Adl Enviro 200 Mmc.

80% 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.

Week by week
Share of departures leaving on time.

Watch a day of route 117’s buses: every bus, replayed on the map.

The weekly figures

The share of departures that left on time.

Week endingWest Middlesex HospitalStaines Bus Station
21 Jun 2025no datano data
28 Jun 202525%90%
5 Jul 202545% thin72% thin
12 Jul 202526% thin83% thin
19 Jul 202536%86%
26 Jul 202530%78%
2 Aug 202533%86%
9 Aug 202524%74%
16 Aug 202521%71%
23 Aug 202523%79%
30 Aug 202538%85%
6 Sept 202529%72%
13 Sept 202526%76%
20 Sept 202536%79%
27 Sept 202525%81%
4 Oct 202533%75%
11 Oct 202534%72%
18 Oct 202534%77%
25 Oct 202533%90%
1 Nov 202531%85%
8 Nov 202537%86%
15 Nov 202530% thin79% thin
22 Nov 202528% thin74% thin
29 Nov 202522%68%
6 Dec 202522%65%
13 Dec 202530%81%
20 Dec 202537%88%
27 Dec 202578% thin94% thin
3 Jan 202674%96%
10 Jan 202647%80%
17 Jan 202650%88%
24 Jan 202635%94%
31 Jan 202673%92%
7 Feb 202648%93%
14 Feb 202651%92%
21 Feb 2026no datano data
28 Feb 2026no datano data
7 Mar 202657%93%
14 Mar 202652%96%
21 Mar 202663%79%
28 Mar 202664%94%
4 Apr 202652%93%
11 Apr 202657%87%
18 Apr 202640%75%
25 Apr 202663% thin91% thin
2 May 202657%90%
9 May 202666%89%
16 May 202663%87%
23 May 202669%80%
30 May 202663%76%
6 Jun 202657%90%
13 Jun 202664%96%
20 Jun 202666%92%
27 Jun 202681%85%
4 Jul 2026no datano data
11 Jul 202664%97%
18 Jul 202678%92%
25 Jul 202676%97%
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 202642%71%
12 Sept 202648%88%
19 Sept 202670%93%
26 Sept 202647%85%
3 Oct 202649%95%
10 Oct 202674%91%
17 Oct 202670%91%

A passenger going by the timetable at West Middlesex Hospital would find about three departures in ten leaving more than 2.5 minutes early or 5 minutes late.

West Middlesex Hospital
On time
70%
Cut short
0.6%
Staines Bus Station
On time
91%
Cut short
0.9%

Compared with TfL's own figures

QuarterTfLOurs
2025/26 Q313 Sept – 2 Jan 202681% on timeno figure
2026/27 Q11 Apr – 26 Jun 202682% 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
  • West Middlesex Hospital: 227 departures seen
  • Staines Bus Station: 221 departures seen
A guide to how much evidence sits behind this week's figures, not a measure of the service.
Not measured
No figure has been produced for towards West Middlesex Hospital or towards Staines Bus Station.
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.