SD4 bus timetable
2 different bus routes are numbered SD4 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.
SD4 bus in South West England
1 route
- SD4 Bishops Waltham — Bishops Waltham ↔ Havant College First Portsmouth, Fareham & Gosport 2 weekday journeys first 08:05 · last 17:12
SD4 bus in Ireland
1 route
- SD4 Tallaght — Tallaght ↔ Tibradden TFI Local Link Kildare South Dublin first 08:00 · last 16:45
Frequently asked questions
Why are there so many different SD4 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 SD4, and 2 of them do. The SD4 in Tallaght has no connection to the SD4 in Bishops Waltham: different operator, different road, different timetable.
How do I find the right SD4 bus timetable?
Find your part of the country in the list above and open the SD4 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 SD4 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 SD4 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.