Trains from City of Westminster to Cardiff start at €27.83 and take 2h 29m at their fastest.
Fares and seats move by the day. Price City of Westminster to Cardiff on the date you actually want, rather than on the date this page was built.
The Trains from City of Westminster to Cardiff starts at €27.83 and takes 2h 29m door to door, run by 2 operators over 242 km, with around 6 departures a day. Fares bottom out about 30 days before departure.
First and last are taken from the services we sell on October 5, 2026. The return direction keeps its own timetable and is not these times reversed.
€34.44 to €54.79 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Typical for this corridor. The operator sets the price on the day.
12Go lists the departures it sells between City of Westminster and Cardiff.
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South Western Railway runs this service and does not sell it here. Bookaway takes the payment.
Bookaway lists departures for City of Westminster to Cardiff on your date, and you pay on their side.
See City of Westminster to Cardiff on Bookaway
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What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
Based on what this route has cost recently. The live fare is confirmed when you book.
Changes at Reading, with 70 minutes between services and a walk of about 5 minutes.
Door to door 3h 34mCO2 7.3 kgChanges 1Refundable
Door to door 2h 29mCO2 8.0 kgChanges 0Refundable
| Operator | From | Fastest |
|---|---|---|
| Great Western Railway | €32.24 | 2h 27m |
 South Western Railway | €28.39 | 2h 26m |
The train gets you into Cardiff. These two partners take it from there, and the bed is theirs to book.
Sort by distance from Cardiff Central and you can see which places are ten minutes on foot and which are not.
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The same search run across the whole booking window, so the shape of the curve is visible rather than described.
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
The Train from City of Westminster to Cardiff takes 2h 29m door to door, of which 1h 45m is spent moving. The route runs 242 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
The Train from City of Westminster to Cardiff starts at €27.83 for one passenger, as of September 20, 2026. A typical fare is €32.52. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
2 operators run the Train from City of Westminster to Cardiff: Great Western Railway, South Western Railway. Between them they file around 6 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
The Train from City of Westminster to Cardiff leaves from City of Westminster station and arrives at Cardiff Central. Allow about 44m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
Fares for the Train from City of Westminster to Cardiff bottom out around 30 days ahead, at €23.99. The gap between the cheapest and most expensive lead time across the window is 126 percent, measured on September 20, 2026. Booking inside the final week has consistently cost more.
The Train from City of Westminster to Cardiff produces about 8.0 kg of CO2 per passenger over 242 km, which works out at roughly 33 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Operators on the Train from City of Westminster to Cardiff publish Power outlets, Wi-Fi. That is what 2 carriers on this corridor state about their own fleets, across a journey of 2h 29m door to door. Where a carrier publishes nothing, this page lists nothing for it.
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Derived from service area The operators listed publish a service area covering both places. That evidences the corridor rather than a named service.
Prices come from the supplier wherever we hold a live quote. Elsewhere we show an indicative price built from the real distance, the real operator and a fare curve over lead time, day of the week and season. Those are labeled Estimated fare and cannot be booked.
Defined in full at Door to door, Fares, The booking window, Carbon
Being on the water gives Cardiff a set of days out that do not start at a station.
Day trips that leave Cardiff in the morning and cover a good part of United Kingdom by evening.
See Cardiff on GetYourGuideOr browse Viator
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