- Must visit
National Museum Cardiff
Major national museum with art, natural history, and geology collections in the city centre. Best known for its impressive Impressionist and Welsh art galleries.
Cheapest price
$78
Average price
$80
Fastest journey
4 h 10 m
Average duration
4 h 15 m
Trains per day
2
Distance
199 km
The best way to find a cheap train ticket from Caernarfon to Cardiff is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Caernarfon to Cardiff will cost around $80 if you buy it on the day, but the cheapest tickets can be found for only $78.
Of the 2 trains that leave Caernarfon for Cardiff on Thu, May 28, 2 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Thu, May 28 the direct trains cover the 199 km distance in an average of 4 h 15 m but if you time it right, some trains will get you there in just 4 h 10 m .
On Thu, May 28 the slowest trains will take 4 h 19 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 Caernarfon to Cardiff among Omio's users. If you are prioritising price take the train with prices starting from $50. For those with little time consider booking a train which can get you there in 4h 25m. The ticket price range depends on the travel mode: a train costs an average of $50, and a train costs an average of $50.
Distance: 123 miles (199 km)
Most popular Train | Driving |
|---|---|
$82 Average price Cheapest | $59 Average price (fuel + tolls) |
4h 55m Average total duration Fastest 4h 25m Onboard + 30m Additional time* | 4h 18m Average total duration (door-to-door) |
![]() Most popular train company | Your own car or car rental |
Direct Options | Direct Options |
Tickets start at around $82 (€66) compared to roughly $59 (€48) in fuel and tolls — a saving of about $-22.81 (€-18.42). The journey takes 4h 25m versus 4h 18m 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 Caernarfon to Cardiff trains for tomorrow, Thursday, May 28. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 8:56 AM Caernarfon | 4h19 | 1:15 PM Cardiff | 0 transfersDirect | |
![]() | 9:05 AM Caernarfon | 4h10 | 1:15 PM Cardiff | 0 transfersDirect | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare train 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 Caernarfon to Cardiff run on average 15 times per day, taking around 4h 25m. Cheap train tickets for this journey start at $50 (€40) if you book in advance.
There are 5 trains per day. The earliest train runs at 05:19, the last at 21:35. The fastest train covers the 123 miles (199 km) distance in 4h 9m.
Distance 123 miles (199 km) |
Average train duration 4h 25m |
Cheapest ticket price $50 (€40) |
Trains per day 15 |
Direct trains 5 |
Fastest train 4h 9m |
First train 5:19 AM |
Last train 9:35 PM |
Cheapest Month Mar |
Cheapest Day Sat |
High Season Apr - Jun |
Low Season Jan - Mar |
Busiest Day Sun |
Least Busy Day Sun |
Best time to book 7 days |
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 the city centre. Best known for its impressive Impressionist and Welsh art galleries.
Open-air museum showing Welsh life through historic buildings moved from across Wales. One of the country’s most loved cultural attractions.
Compact city museum covering Cardiff’s growth from market town to capital, with local stories, objects, and interactive displays.
Waterside district with modern landmarks, walking routes, public art, and some of the city’s most shared photo spots.
Large central park behind Cardiff Castle, ideal for riverside walks, picnics, and easy access to historic sites.
Historic Victorian and Edwardian shopping arcades that give central Cardiff much of its character. Excellent for walking and architecture lovers.
Traditional Welsh soup or stew, usually made with lamb or beef, leeks, potatoes, and root vegetables. It is one of Wales’ most iconic comfort foods.
A classic Welsh dish of toasted bread topped with a savoury cheese sauce, often flavoured with mustard or ale. It is a staple pub and cafe dish in Cardiff.
Traditional Welsh vegetarian sausages made with cheese, leeks, and breadcrumbs. They are especially associated with South Wales.
Well-known steak restaurant with an open-fire cooking style, stylish interior, and strong reputation for high-quality meat and memorable service.
Established restaurant at HMP Cardiff, known for refined dining prepared and served by trainees in a unique, professional setting.
Highly regarded neighbourhood restaurant in Llandaff serving seasonal small plates, natural wine, and modern cooking in a relaxed contemporary space.
Moderate by UK standards. Pub meals and chain cafes are reasonable, while central hotels and upscale dining cost more.
Service charge is not always included. Tip 10-12.5% in restaurants for good service. Round up in taxis. Tipping in pubs and cafes is optional.
Official public transport app
Cardiff Central, Cardiff -> Cardiff City Centre, Cardiff
Find answers to the most common questions about traveling from Caernarfon 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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