4S bus timetable
Looking for the 4S bus? 5 different bus routes are numbered 4S across the UK and Ireland, run by 5 operators in 4 areas. They are separate services that happen to share a number — pick yours below for its timetable, stops, live map and fares.
A number ending in S is usually a school service — often one journey each way, and not in the holidays. What bus route numbers mean
4S bus in South East England
1 route
- Milton Keynes — Central Milton Keynes to Bletchley via Eaglestone, Denbigh Arriva Beds and Bucks · weekdays only · 07:55–15:23 · 2 buses a weekday
4S bus in East Midlands
2 routes
- Stamford — Stamford to Fotheringhay via Easton on the Hill, Kings Cliffe CallConnect · weekdays only · 07:10–18:25 · 24 buses a weekday
- Stamford — Stamford to Fotheringhay via Easton on the Hill, Kings Cliffe TransportConnect · weekdays only · 07:10–18:25 · 24 buses a weekday
4S bus in Scotland
1 route
- Dundee — Dryburgh to Riverside via Charleston, Balgay Xplore Dundee · weekdays only · 08:14–15:55 · 2 buses a weekday
4S bus in Wales
1 route
- Chester — Chester to Mold via Saltney, Buckley Arriva Wales · 05:57–23:00 · 12 buses a weekday
Frequently asked questions
Where does the 4S bus run?
5 buses are numbered 4S, in Chester, Milton Keynes, Stamford & Dundee. Each one is listed above by area, with its timetable, stops and live map.
Why are there so many different 4S 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 4S, and 5 of them do. The 4S in Chester has no connection to the 4S in Milton Keynes: different operator, different road, different timetable.
How do I find the right 4S bus timetable?
Find your part of the country in the list above and open the 4S 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 4S bus the same route in every town?
No. These are 5 unrelated services that happen to share a number, run by 5 different operators. Fares, timetables and accessibility differ on each one, so always open the specific 4S for your area.
What does the “4S” in the bus number mean?
A number ending in S is usually a school service — often one journey each way, and not in the holidays. It is a convention operators choose to follow rather than a national rule, so check the specific 4S 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.