21H bus timetable
Looking for the 21H bus? 2 different bus routes are numbered 21H 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.
A letter on the end usually marks a variant of the plain-numbered route — a different terminus or a peak-hour extension — and what it stands for is up to the operator. What bus route numbers mean
21H bus in Wales
1 route
- Wrexham — Wrexham circular via Bryn Offa, Gwersyllt Arriva Wales · 07:30–17:30 · 11 buses a weekday
21H bus in Isle of Man
1 route
- Douglas — Douglas circular via Tromode, Strang Bus Vannin · 06:06–21:55 · 6 buses a weekday
Frequently asked questions
Where does the 21H bus run?
2 buses are numbered 21H, in Douglas & Wrexham. Each one is listed above by area, with its timetable, stops and live map.
Why are there so many different 21H 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 21H, and 2 of them do. The 21H in Douglas has no connection to the 21H in Wrexham: different operator, different road, different timetable.
How do I find the right 21H bus timetable?
Find your part of the country in the list above and open the 21H 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 21H 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 21H for your area.
What does the “21H” in the bus number mean?
A letter on the end usually marks a variant of the plain-numbered route — a different terminus or a peak-hour extension — and what it stands for is up to the operator. It is a convention operators choose to follow rather than a national rule, so check the specific 21H for your area in the list above. See our guide to what UK bus route numbers mean for the letters that are reliable and the ones that are not.
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.