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Slough to Cardiff buses

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Trip Overview

The average bus between Slough and Cardiff takes 4h 1m and the fastest bus takes 3h 33m. There is a bus service every few hours from Slough to Cardiff. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

4h 1m
Duration
146 mi
Distance
£29
Average price
Hourly
Frequency

Bus

best
  1. Take the bus from Heathrow Central Bus Station to Sophia Gardensbus bus 201 / ...
4h 14m
£25–43

Slough to Cardiff bus times

Buses run hourly between Slough and Cardiff. The earliest departure is at 12:02 AM at night, and the last departure from Slough is at 11:32 PM which arrives into Cardiff at 3:35 AM. All services require a transfer, and take on average 4h 1m. The schedules shown below are for the next available departures.

Departing Saturday, October 31, 2026

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    First Berkshire & The Thames ValleyNational Express3h 52m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 8m • 1 change

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    First Berkshire & The Thames ValleyNational Express3h 48m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 3m • 1 change
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Departing Sunday, November 1, 2026

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    First Berkshire & The Thames ValleyNational Express3h 33m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 20m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 15m • 1 change

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    First Berkshire & The Thames ValleyNational Express3h 59m • 1 change
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Departing Monday, November 2, 2026

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    First Berkshire & The Thames ValleyNational Express4h 7m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 10m • 1 change

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    First Berkshire & The Thames ValleyNational Express3h 50m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 11m • 1 change
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Departing Tuesday, November 3, 2026

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    First Berkshire & The Thames ValleyNational Express4h 7m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 10m • 1 change

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    First Berkshire & The Thames ValleyNational Express3h 50m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 11m • 1 change
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Departing Wednesday, November 4, 2026

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    First Berkshire & The Thames ValleyNational Express4h 7m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 10m • 1 change

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    First Berkshire & The Thames ValleyNational Express3h 50m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 11m • 1 change
  • Show more

Departing Thursday, November 5, 2026

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    First Berkshire & The Thames ValleyNational Express4h 7m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 10m • 1 change

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    First Berkshire & The Thames ValleyNational Express3h 50m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 11m • 1 change
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Departing Friday, November 6, 2026

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    First Berkshire & The Thames ValleyNational Express4h 7m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 10m • 1 change

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    First Berkshire & The Thames ValleyNational Express3h 50m • 1 change

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    First Berkshire & The Thames ValleyNational Express4h 26m • 1 change
  • Show more

Frequently asked questions

Want to know about travelling from Slough to Cardiff? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.

Map of how to get from Slough to Cardiff.ExpandLaunch map view
  • Distance: 145.9 mi
  • Duration: 4h 1m

What companies run services between Slough, England and Cardiff, Wales?

National Express operates a bus from Heathrow Central Bus Station to Sophia Gardens hourly. Tickets cost £22–40 and the journey takes 3h.

Operators