The average bus between Cardiff and Central London takes 5h 17m and the fastest bus takes 3h 21m. The bus service runs several times per day from Cardiff to Central London. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run 3 times a day between Cardiff and Central London. The earliest departure is at 1:40 AM at night, and the last departure from Cardiff is at 11:40 PM which arrives into Central London at 3:54 AM. All services require a transfer, and take on average 5h 17m. The schedules shown below are for the next available departures.

3h 21m • 1 change
Arrives next day

7h 45m • 1 change
Arrives next day

4h 7m • 1 change

3h 31m • 1 change
Arrives next day

7h 55m • 1 change
Arrives next day

4h 7m • 1 change

3h 31m • 1 change
Arrives next day

7h 55m • 1 change
Arrives next day

4h 7m • 1 change

3h 31m • 1 change
Arrives next day

7h 55m • 1 change
Arrives next day

4h 14m • 1 change
Want to know about travelling from Cardiff to Central London? 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.
No, there is no direct bus from Cardiff to Central London. However, there are services departing from Cardiff station and arriving at Central London station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 5h 17m.
Cardiff to Central London bus services, operated by National Express, depart from Sophia Gardens station.
Cardiff to Central London bus services, operated by National Express, arrive at Heathrow Central Bus Station.
The distance between Cardiff and Central London is 198.8 km. The road distance is 233 km.
National Express operates a bus from Sophia Gardens to Heathrow Central Bus Station hourly. Tickets cost £25–65 and the journey takes 2h 50m.