The average bus between London and St Mellons takes 5h and the fastest bus takes 3h 55m. The bus service runs several times per day from London to St Mellons. 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 every 4 hours between London and St Mellons. The earliest departure is at 7:30 AM in the morning, and the last departure from London is at 11:30 PM which arrives into St Mellons at 7:39 AM. All services require a transfer at Newport Train Station and take an average of 5h. The schedules shown below are for the next available departures.

4h 18m • 1 change

3h 55m • 1 change

4h 24m • 1 change

4h 25m • 1 change

4h 18m • 1 change

3h 55m • 1 change

4h 24m • 1 change

4h 25m • 1 change

4h 18m • 1 change

3h 55m • 1 change

4h 24m • 1 change

4h 25m • 1 change

4h 18m • 1 change

3h 55m • 1 change

4h 24m • 1 change

4h 25m • 1 change

4h 18m • 1 change

3h 55m • 1 change

4h 24m • 1 change

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4h 26m • 1 change

4h 26m • 1 change

4h 33m • 1 change

4h 25m • 1 change
Want to know about travelling from London to St Mellons? 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 London to St Mellons. However, there are services departing from London station and arriving at St Mellons station via Newport Train Station station. The journey, including transfers, takes approximately 5h.
London to St Mellons bus services, operated by FlixBus, depart from London Victoria station.
London to St Mellons bus services, operated by FlixBus, arrive at Newport Train Station.
The distance between London and St Mellons is 206 km. The road distance is 232 km.
FlixBus operates a bus from London Victoria to Newport Train Station every 3 hours. Tickets cost £13–22 and the journey takes 2h 45m.