London Bus U3 Timetable
First bus, last bus and departure times at every stop
This is the full timetable for the number U3 bus in London, which runs between Uxbridge Station and Heathrow Central Bus Station. The table shows the first bus, the last bus and how often the U3 runs from each of the 38 stops in each direction. Times below are for buses towards Heathrow Central Bus Station (Mon-Fri). Use the toggles to switch direction or day, and tap any stop for its full hour by hour departure list.
This page shows TfL's scheduled times for the U3. Waiting at a stop right now? See live arrivals and the route map for bus U3 instead.
Tap any stop to see every scheduled departure, hour by hour, plus a link to its live arrivals.
Full U3 timetable from Uxbridge Station (Mon-Fri)
Every scheduled U3 bus departure from Uxbridge Station towards Heathrow Central Bus Station, Mon-Fri. For other days, use the day buttons above or tap any stop in the table.
Full U3 timetable from Heathrow Central Bus Station (Mon-Fri)
Every scheduled U3 bus departure from Heathrow Central Bus Station towards Belmont Road, Mon-Fri. For other days, use the day buttons above or tap any stop in the table.
First and Last are the earliest and latest scheduled departures from each stop in the chosen direction. Every is the typical daytime interval between buses from 07:00 to 19:00; buses may be more frequent at peak times and less frequent early and late. Times at the final stop are arrivals. Times at stops along the route are TfL's scheduled running times from the start of the route, so on busy days buses can run a few minutes later. Tap a stop row for its full list of departures. All times come from Transport for London's timetable data.
Source: TfL Timetable API
Bus U3 timetable FAQs
What time is the first U3 bus?
The first U3 bus leaves Uxbridge Station at 03:20 towards Heathrow Central Bus Station (Mon-Fri). From Heathrow Central Bus Station the first bus is at 04:10. Use the table above for the first bus from any stop on the route.
What time is the last U3 bus?
The last U3 bus leaves Uxbridge Station at 23:50 towards Heathrow Central Bus Station (Mon-Fri). From Heathrow Central Bus Station the last bus is at 00:20. Tap any stop in the table above to see its exact last departure.
How often does the U3 bus run?
During the day the U3 typically runs about every 12 minutes. Buses can be more frequent at peak times and less frequent early in the morning and late in the evening.
Does the U3 bus run on Sundays?
Yes. On Sundays the U3 runs from 03:20 until 23:50 from Uxbridge Station. Use the Sun button above to see full Sunday times.