Bus from Cardiff to London
Book your bus ticket to London from Cardiff today
Duration 3 hours 50 minutes (fastest time)
Departures Up to 6 services per day
Why travel with megabus?
Free Wi-Fi onboard*
Charging points onboard*
Free 20kg luggage allowance
Great value fares
4 million happy customers
* Subject to availability
Cardiff to London bus details
Our route M10X bus stops at 6 stops between Cardiff and London. The bus sets off from Kingsway, Stop GQ and drops you off at Victoria Coach Station
See the best bits of London on your next trip by hopping on our non-stop megasightseeing.com bus tour. So all you need to do is sit back, relax and soak up the sights from the comfort of the top deck.
megabus tickets are available from megabus staff or from the megabus self service ticket machines at Victoria Coach Station
megabus authorised agents
Green Line Travel Shop is in Victoria
Mon - Fri 0900 - 1630
Sat - Sun 0830 - 1600
TFL Victoria Coach Station
Never been on one of our buses? Well now you can experience what we have to offer from the comfort of your own home.
Check out the megabus experience with our amazing videos and 3D tours.
Frequently Asked Questions
How long does it take to travel from Cardiff to London by bus?
The fastest bus from Cardiff to London takes 3 hours 50 minutes
When is the first bus from Cardiff to London?
The earliest bus from Cardiff to London leaves at 06:10
When is the last bus from Cardiff to London?
The latest bus from Cardiff to London leaves at 16:00
How many daily bus trips are there from Cardiff to London?
Megabus runs up to 6 trips per day from Cardiff to London
See London for less in 2 hours on our non-stop open-top bus tour - megasightseeing.com. Book online right up to time of departure from £1* and enjoy 50 sights all from your top deck seat.
*Plus booking fee. Subject to availability