Train Cardiff to Harpenden from £95 | Tickets & Timetables

Trip Overview

The average train between Cardiff and Harpenden takes 2h 48m and the fastest train takes 2h 36m. There is an hourly train service from Cardiff to Harpenden. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

2h 48m
Duration: 173 mi
Distance: £95
Average price: Hourly
Frequency

Train

best

Take the train from Cardiff Central to London Paddingtontrain Swansea - London Paddington / ...
Take the train from Farringdon to Harpendentrain Brighton - Bedford / ...

3h 12m

£80–153

Cardiff to Harpenden train times

Trains run hourly between Cardiff and Harpenden. The earliest departure is at 5:07 AM in the morning, and the last departure from Cardiff is at 9:20 PM which arrives into Harpenden at 12:23 AM. All services require a transfer at London Paddington and take an average of 2h 48m. The schedules shown below are for the next available departures.

Departing Tuesday, June 16, 2026

2:54 PM → 5:30 PM
2h 36m • 2 changes
3:18 PM → 6:00 PM
2h 42m • 2 changes
3:54 PM → 6:30 PM
2h 36m • 2 changes
4:21 PM → 7:00 PM
2h 39m • 2 changes
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Departing Wednesday, June 17, 2026

5:07 AM → 8:20 AM
3h 13m • 2 changes
5:53 AM → 8:31 AM
2h 37m • 2 changes
6:24 AM → 9:21 AM
2h 57m • 2 changes
6:51 AM → 9:47 AM
2h 55m • 2 changes
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Departing Thursday, June 18, 2026

5:07 AM → 8:20 AM
3h 13m • 2 changes
5:53 AM → 8:31 AM
2h 37m • 2 changes
6:24 AM → 9:21 AM
2h 57m • 2 changes
6:51 AM → 9:47 AM
2h 55m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Cardiff to Harpenden? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.