- Must visit
National Museum Cardiff
Major national museum with art, natural history, and geology collections in central Cardiff.
Cheapest price
$13
Average price
$13
Fastest journey
52 m
Average duration
52 m
Trains per day
15
Distance
27 km
The best way to find a cheap train ticket from Mountain Ash to Cardiff is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Mountain Ash to Cardiff will cost around $13 if you buy it on the day, but the cheapest tickets can be found for only $13.
Of the 15 trains that leave Mountain Ash for Cardiff on Thu, Jun 25, 15 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Thu, Jun 25 the direct trains cover the 27 km distance in an average of 52 m but if you time it right, some trains will get you there in just 52 m .
On Thu, Jun 25 the slowest trains will take 52 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.










Omio recommends booking the train as it is the most popular option from Mountain Ash to Cardiff among Omio's users. If you are prioritising price take the train with prices starting from $8. For those with little time consider booking a train which can get you there in 52m. The ticket price range depends on the travel mode: a train costs an average of $8, and a bus costs an average of $14.
Distance: 16 miles (27 km)
Most popular Train | Bus | Driving |
|---|---|---|
$8 Average price Cheapest | $14 Average price | $8 Average price (fuel + tolls) |
1h 22m Average total duration Fastest 52m Onboard + 30m Additional time* | 2h 16m Average total duration 1h 46m Onboard + 30m Additional time* | 39m Average total duration (door-to-door) |
Direct Options | Direct Options | Direct Options |
This is compared to other travel options from Mountain Ash to Cardiff:
A train is $6 (€5) less than a bus for this route with tickets for a bus from Mountain Ash to Cardiff costing on average $14 (€12).
Other travel options to Cardiff take longer:
Bus takes on average 1h 46m.
Tickets start at around $8 (€7) compared to roughly $8 (€6) in fuel and tolls — a saving of about $-0.47 (€-0.39). The journey takes 52m versus 39m by car, so you'll arrive a bit later, but you can work, read, or sleep along the way rather than spending the time behind the wheel. You'll also save the hassle of parking at the other end.
Driving is worth it if you're on a tight schedule, travelling as a group, or want to stop somewhere en route.
The table below shows live departures for Mountain Ash to Cardiff trains for tomorrow, Thursday, June 25. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 6:02 AM Mountain Ash | 0h52 | 6:54 AM Cardiff | 0 transfersDirect | |
![]() | 6:32 AM Mountain Ash | 0h52 | 7:24 AM Cardiff | 0 transfersDirect | |
![]() | 7:02 AM Mountain Ash | 0h52 | 7:54 AM Cardiff | 0 transfersDirect | |
![]() | 7:32 AM Mountain Ash | 0h52 | 8:24 AM Cardiff | 0 transfersDirect | |
![]() | 8:02 AM Mountain Ash | 0h52 | 8:54 AM Cardiff | 0 transfersDirect | |
![]() | 8:32 AM Mountain Ash | 0h52 | 9:24 AM Cardiff | 0 transfersDirect | |
![]() | 9:02 AM Mountain Ash | 0h53 | 9:55 AM Cardiff | 0 transfersDirect | |
![]() | 9:32 AM Mountain Ash | 0h52 | 10:24 AM Cardiff | 0 transfersDirect | |
![]() | 10:02 AM Mountain Ash | 0h52 | 10:54 AM Cardiff | 0 transfersDirect | |
![]() | 10:32 AM Mountain Ash | 0h52 | 11:24 AM Cardiff | 0 transfersDirect | |
![]() | 11:02 AM Mountain Ash | 0h52 | 11:54 AM Cardiff | 0 transfersDirect | |
![]() | 11:32 AM Mountain Ash | 0h52 | 12:24 PM Cardiff | 0 transfersDirect | |
![]() | 12:02 PM Mountain Ash | 0h52 | 12:54 PM Cardiff | 0 transfersDirect | |
![]() | 12:32 PM Mountain Ash | 0h52 | 1:24 PM Cardiff | 0 transfersDirect | |
![]() | 1:02 PM Mountain Ash | 0h52 | 1:54 PM Cardiff | 0 transfersDirect | |
Find all the dates and times for this journey
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.
Trains from Mountain Ash to Cardiff run on average 6 times per day, taking around 52m. Cheap train tickets for this journey start at $8 (€7) if you book in advance.
There are 5 trains per day. The earliest train runs at 05:24, the last at 23:14. The fastest train covers the 16 miles (27 km) distance in 53m.
Distance 16 miles (27 km) |
Average train duration 52m |
Cheapest ticket price $8 (€7) |
Trains per day 6 |
Direct trains 5 |
Fastest train 53m |
First train 5:24 AM |
Last train 11:14 PM |
Cheapest Month Oct |
Cheapest Day Mon |
High Season Apr - Jun |
Low Season Jan - Mar |
Busiest Day Thu |
Least Busy Day Thu |
Discover the best of Cardiff — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Cardiff trip today.
Major national museum with art, natural history, and geology collections in central Cardiff.
Open-air museum showcasing Welsh historic buildings, traditions, and everyday life on a large heritage site.
City museum covering Cardiff’s social history, industry, communities, and urban development.
Revitalized waterfront district with promenades, public buildings, and popular photo-friendly views.
Large central park ideal for riverside walks, greenery, and easy access from the castle.
Network of historic Victorian and Edwardian arcades prized for architecture and local independent shops.
Traditional Welsh soup or stew, usually made with lamb or beef, leeks, potatoes, and root vegetables. It is one of Wales’s best-known comfort dishes.
A classic Welsh dish of toasted bread topped with a savory cheese sauce, often seasoned with mustard or ale. It is a staple in pubs and cafes across Cardiff.
A traditional Welsh vegetarian sausage made with cheese, leeks, and breadcrumbs. It is especially associated with South Wales.
Well-known steakhouse in central Cardiff, praised for quality Welsh beef, polished service, and a lively modern atmosphere.
Highly regarded fine-dining venue serving well-presented British dishes in a unique and memorable setting.
Long-running Portuguese restaurant popular for grilled meat, seafood, and generous portions in a warm, traditional setting.
Generally cheaper than London. Hotels can rise on event days, but food, transport, and pubs are usually moderate for UK city travel.
Service charge is not always included. Tip about 10-12.5% in restaurants for good service, round up taxis, and tipping in pubs or cafes is optional.
Official public transport app
Cardiff Central, Cardiff -> Cardiff City Centre, Cardiff
Find answers to the most common questions about traveling from Mountain Ash to Cardiff by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at Cardiff, this guide helps you travel smarter and with confidence.

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