Travel Information
Compare train and bus for Cardiff to London
Omio recommends booking the bus as it is the most popular option from Cardiff to London among Omio's users. If you are prioritising price, take the bus, with an average ticket price of €12 For those with little time, consider booking a train, which has an average total journey time of 3h 40m. If you are seeking to minimise your carbon footprint, the train is your best option, with estimated CO2 emissions of 0.1 - 0.2kg. Average ticket prices depend on the travel mode: a bus costs an average of €12, while a train costs an average of €68.
Distance: 211 km
Compare bus with
Most popular Bus | Train |
|---|---|
€12 Average price Cheapest | €68 Average price |
3h 52m Average total duration 3h 22m Onboard + 30m Additional time* | 3h 40m Average total duration Fastest 3h 10m Onboard + 30m Additional time* |
0.2 - 0.5kg CO2 emissions | 0.1 - 0.2kg CO2 emissions Lowest |
![]() Most popular bus company | ![]() Most popular train company |
Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Travel optionsfrom Cardiff to London
How to get from Cardiff to London by train, bus or flight.
Our recommendation
The best way to travel from Cardiff to London is by taking a bus because it’s the best combination of price and speed.
FlixBus5:25 PM3h20Cardiff, North Road (Friary Gardens)8:45 PMLondon, Hammersmith Broadway (Irish Cultural Centre)€151One-way0 transfers
Cheapest
FlixBus5:25 PM3h20Cardiff, North Road (Friary Gardens)8:45 PMLondon, Hammersmith Broadway (Irish Cultural Centre)€151One-way0 transfers
Fastest
G150482:54 PM1h47Cardiff Central (CDF)4:41 PMLondon Paddington (PAD)€681One-way0 transfers
Other options
G150519:20 PM1h51Cardiff Central (CDF)11:11 PMLondon Paddington (PAD)€581One-way0 transfers
W351943:54 PM1h50Cardiff Central (CDF)5:44 PMLondon Paddington (PAD)€631One-way0 transfers
W354378:18 PM1h51Cardiff Central (CDF)10:09 PMLondon Paddington (PAD)€631One-way0 transfers
FlixBus4:15 PM3h20Cardiff, North Road (Friary Gardens)7:35 PMLondon, Hammersmith Broadway (Irish Cultural Centre)€151One-way0 transfers
FlixBus5:25 PM3h45Cardiff, North Road (Friary Gardens)9:10 PMLondon, Victoria Coach Station€151One-way0 transfers
FlixBus4:15 PM3h50Cardiff, North Road (Friary Gardens)8:05 PMLondon, Victoria Coach Station€151One-way0 transfers
Find all the dates and times for this journey by train, bus, flight, and ferry .
Compare prices and tickets Prices for trains, buses and flights
Compare train and bus prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
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FAQs: Travel from Cardiff to London
Travel to London easily. Whether you want fast, cheap or something entirely different, our travel experts have collected everything you need to know so you can find the best option from Cardiff to London.

This is compared to other travel options from Cardiff to London:
A bus is €56 less than a train for this route with tickets for a train from Cardiff to London costing on average €68.
Other travel options to London take longer:
Bus takes on average 3h 52m.
- Around 41 buses per day.
- Around 14 trains per day.
However, we recommend checking specific travel dates for your route between Cardiff and London as scheduled services by train and bus can vary by season or day of the week.
- Trains mostly depart from Cardiff Central (CDF) and arrive in Heathrow Terminal 5 (HWV).
- Buses mostly depart from Cardiff, Sophia Gardens and arrive in London, Victoria Coach Station.
- Ferries mostly depart from Southampton Vehicle Ferry Terminal and arrive in West Cowes.
- Travel with Great Western Railway, South Western Railway, Great Western Railway (GWR) to go to London by train.
- Travel with National Express, FlixBus, Megabus to go to London by bus.
- 12 direct trains per day with Great Western Railway, Great Western Railway (GWR).
- 34 direct buses per day with National Express, FlixBus, Megabus.
Travelling from Cardiff to London: related information
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