The cheapest and fastest trains from Harpenden to Cardiff
Cheapest price
£154
Average price
£154
Fastest journey
2 h 38 m
Average duration
2 h 40 m
Trains per day
5
Distance
198 km
The best way to find a cheap train ticket from Harpenden to Cardiff is to book your journey as far in advance as possible and to avoid travelling at rush hour.
The average ticket from Harpenden to Cardiff will cost around £154 if you buy it on the day, but you can find cheap train tickets today for only £154.
To travel from Harpenden to Cardiff you need to make at least 2 changes.










Live departures
Harpenden to Cardiff train times
The table below shows live departures for Harpenden to Cardiff trains for tomorrow, Sunday 22 March. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
![]() | 05:52 Harpenden | 2h48 | 08:40 Cardiff | 2 changes | |
![]() | 06:22 Harpenden | 2h46 | 09:08 Cardiff | 2 changes | |
![]() | 06:58 Harpenden | 2h38 | 09:36 Cardiff | 2 changes | |
![]() | 07:28 Harpenden | 2h41 | 10:09 Cardiff | 2 changes | |
![]() | 07:58 Harpenden | 2h39 | 10:37 Cardiff | 2 changes |
Find all the dates and times for this journey
Compare prices and tickets Harpenden to Cardiff by coach
Compare coach 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.
23 Mar
24 Mar
25 Mar
26 Mar
27 Mar
28 Mar
29 Mar
Why should you book Harpenden to Cardiff trains with Omio?
Why book with Omio vs Great Western Rail?
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Journey information
Overview: Train from Harpenden to Cardiff
Take a train from Harpenden to Cardiff and enjoy the approximately 198 km long journey. Find schedules and pricing options for a convenient and affordable trip.
The earliest train runs at 04:47, the last at 21:38.
Distance 198 km |
Average train duration 2h 28m |
Trains per day 4 |
First train 04:47 |
Last train 21:38 |
Train companies: Great Western Rail from Harpenden to Cardiff trainsGreat Western Rail trains will get you between Harpenden and Cardiff from £24. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Great Western Rail
FAQs: Harpenden to Cardiff train
Find answers to the most common questions about traveling from Harpenden 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.

popular train stations
Important Stations and Airports in Harpenden and Cardiff
- Opening hours: Monday - Friday 05:45 - 20:15 Saturday 06:15 - 19:15 Sunday 07:15 - 20:15
- Type of shops available: Coffee shop
- Car Park: Station Car Park
- Taxi: YES
- Staff help available: Yes
- Step free access coverage: Yes
- Step free access note: This is a Category A station: This station has step-free level access to all platforms. Assistance Meeting Point is the front of the station Ticket Office entrance.
- Accessible ticket machines: There are accessible ticket machines at this station
- Accessible ticket machines note: All Thameslink ticket machines are able to sell tickets with Disabled Persons Railcard discounts. Ticket machines are of an accessible design, however their location and the station itself may not be so please check the station access note for further details
- Accessible toilets: Yes
- Ramp for train access: Yes
- Wheelchairs available: Yes
- Wheelchairs available open hours: Wheelchairs may only be available when the station is staffed
- Impaired mobility set down / pick up points available: Yes
- Toilets Location: Platform 4
- National key toilets: Yes
- Baby changing facilities: Yes
- Waiting rooms location: Heated waiting areas are available on platform 1, 2 and 3
- Storage sheltered: Yes
- Storage location: Platform 1 and 4 and station car park
- Storage CCTV: Yes
- Mon - Fri: 05:40 - 21:30
- Sat: 05:40 - 21:30
- Sun: 07:30 - 21:30
- Free Wi-Fi in the station.
- Type of shops available: News agent and convenience store
- Car Park: Brewery Car park
- Gourmet Coffee Bar & Kitchen
- Pret a Manger
- Tesco Express
- Taxi: Taxi rank is on the right as you exit the main station entrance
- There is step-free access in the whole station. There are also ramps for train access and elevators in the station.
- Toilets Location: The toilets are located on Platforms 1 to 8. The National Key toilets are located in the East Subway near the lifts and on Platform 8; these toilets are operated by a radar key and are only available during staffing hours.
- National key toilets: Yes
- National key toilets location: The National Key/Accessible toilets are located in the East Subway near the lifts and on Platform 8; these toilets are operated by a RADAR key and are only available during staffing hours.
- Baby changing facilities: Yes
- Clayton Hotel Cardiff
- Cardiff Marriott Hotel
- Travelodge Cardiff Central
- Waiting rooms location: On platforms 1/2, 3/4, 6/7 and 8.
- Mon - Fri: 05:40 - 21:30
- Sat: 05:40 - 21:30
- Sun: 07:30 - 21:30
- Storage sheltered: Yes
- Storage location: East end of platforms 1 and 2, 3 and 4, 6 and 7 - also at the front and rear of the station.
- Storage CCTV: Yes
- Commuter rail lines: City Line, Rhondda Line, Rhymney Line, Valley Line, South Wales Main Line
- Train lines: Transport for Wales, CrossCountry, Great Western Railway
- Location for Rail Replacement Services: At the rear car park (Penarth Road entrance)
Most popular train connections from Harpenden
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