How to get from London to Cardiff
Compare the train, bus and flight options. Then check them for your own date.
Start with the whole journey.
We compared the ways to travel from London to Cardiff. The most useful door-to-door route takes 3h 40m by bus, 1 transfer. The two cities are about 223 km apart in a straight line. The price and operators below come from a real route search.
This is the lowest fare we have recorded for this route in the last 14 days.
223 km
Which way suits you?
| Transport | Observed fare | Duration and scope | Detail |
|---|---|---|---|
| Flight | €56Checked Sep 9 | 3hFlight only | See Flight details |
| Bus | €13Omio catalogue, Sep 9 | 3h 40m1 transfer | See Bus details |
- Flight€56Checked Sep 93h · Flight onlySee Flight details
- Bus€13Omio catalogue, Sep 93h 40m · 1 transferSee Bus details
These figures were observed on different days. This table is not a live price ranking for your date.
London to Cardiff: cheapest or fastest?
All from the same recent search. Pick a tab: the legs, the timing and the difference from the others all change with it.
- 1London → London HeathrowbusCity transit·10m
- 2London Heathrow → Cardiff Castlebus
FlixBus·3h 10m
The best balance of price and time we found on this route.
The observed fares belong to earlier dates.
Search my dateWhich date should you go?
The amounts on each day are fares seen earlier, not live offers. A day with no figure is one we have not priced, not one without a service.
All transport observations
Flight calendar
Flight prices by day, London to Cardiff
The lowest fare we saw for each day over the next three months. Tap a day to search it live.
September 2026
€35October 2026
€55Departures from London to Cardiff
FlixBus runs 89 scheduled departures a day, the first at 00:15 and the last at 23:55.
| Operator | Departures a day | First | Last |
|---|---|---|---|
| FlixBusbus | 89 | 00:15 | 23:55 |
Departure times come from operator timetables and are local time at the origin. Where a row shows no times, the frequency is the operator's own and the timetable is not published to us. Times can change on holidays and at short notice; confirm with the operator before you travel.
Departure and arrival
Ticket prices on this route
What each way of travelling costs, as the operator publishes it. These describe the route rather than a date you pick, and they refresh once a day. Booking opens at our partner Omio.
Omio last refreshed these on Wed, Sep 9
Operators seen on these journeys
FlixBusLondon Heathrow-Cardiff CastleBook →Airport shuttle busBristol Airport-CardiffBook →On this route you travel with City transit, FlixBus, Airport shuttle bus; Routavio does not add a booking fee.
How the trip from London to Cardiff works
Start with a City transit bus from London to London Heathrow, about 10 min. Transfer in London Heathrow and continue by FlixBus bus on to Cardiff Castle (3h 10m). In total it's roughly €17 over 3h 40m, 1 transfer.
London to Cardiff: common questions
How long does it take to get from London to Cardiff?
The most useful route takes about 3h 40m by bus, 1 transfer.
How far is Cardiff from London?
About 223 km in a straight line. The real route on the ground or in the air is longer.
How much does London to Cardiff cost?
On the upcoming dates we checked, the cheapest fare ranged from €17 to €21. Run a live search for your own date to see today's price.
Which operators run London to Cardiff?
On this route you travel with City transit, FlixBus, Airport shuttle bus.
Can you get from London to Cardiff without flying?
Yes. A ground route by train takes about 1h 44m.
What is the cheapest way to get from London to Cardiff?
Usually a flexible date, or leaving from a nearby airport. A live search puts every option for your dates side by side.
Can I book directly?
Yes. Routavio sends you straight to the operator or an independent third-party provider. We never add a booking fee. The final fare and availability are confirmed by that provider.
Other ways people search London to Cardiff
- how to get from London to Cardiff
- London to Cardiff travel time
- London to Cardiff distance
- cheapest way from London to Cardiff
- London to Cardiff by bus