21D bus timetable
2 different bus routes are numbered 21D across the UK and Ireland, run by 2 operators in 2 areas. They are separate services that happen to share a number — pick yours below for its timetable, stops, live map and fares.
21D bus in South West England
1 route
- 21D Plymouth — Milehouse ↔ St Budeaux Square 3 Plymouth Citybus 2 weekday journeys first 04:00 · last 05:15
21D bus in Scotland
1 route
- 21D Dundee — Dundee City Centre Bus Station ↔ Forfar Royal Bank of Scotland Stagecoach East Scotland 2 weekday journeys first 08:05 · last 16:00
Frequently asked questions
Why are there so many different 21D buses?
Route numbers in the UK are chosen locally — by the operator, or by the local transport authority that tenders the service — not from any national list. Nothing stops two towns hundreds of miles apart both running a 21D, and 2 of them do. The 21D in Dundee has no connection to the 21D in Plymouth: different operator, different road, different timetable.
How do I find the right 21D bus timetable?
Find your part of the country in the list above and open the 21D that starts or finishes near you — each one links to its full timetable, every stop, a live map and its fares. If you know the stop you'll be waiting at, searching for the stop name instead gives you the next departures from that exact stop, which is more reliable than any timetable.
Is the 21D bus the same route in every town?
No. These are 2 unrelated services that happen to share a number, run by 2 different operators. Fares, timetables and accessibility differ on each one, so always open the specific 21D for your area.
Looking for the next bus rather than a timetable? Stops near you shows live departures. Browse all bus routes, every operator or timetables by town. Data from operators via the DfT Bus Open Data Service — see all sources.