Heathrow, Central Bus Station – Cippenham, Moreton Way

Frequently asked questions about the A4

What time is the first and last A4 bus?

The first A4 of the day departs at 00:05 and the last one departs at 23:47. These are the scheduled departure times of the first and last journeys, which may start from either end of the route — check the timetable above for times at your own stop.

Does the A4 bus run at weekends?

Yes. The A4 runs seven days a week, including Saturdays and Sundays. Sunday and bank holiday timetables are usually less frequent than weekdays, so check the times above before travelling.

Where does the A4 bus go?

The A4 runs between Heathrow, Central Bus Station and Cippenham, Moreton Way, via Langley and Slough Trading Estate. The full list of stops in each direction is shown above.

Who operates the A4 bus?

The A4 is operated by First Berkshire. For tickets, fares, lost property or complaints about a journey you need to contact them directly — we're an independent service and can't help with those.