Watford to Caerphilly Trains

Watford to Caerphilly trains

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Trip Overview

The average train between Watford and Caerphilly takes 3h 42m and the fastest train takes 3h 9m. There is an hourly train service from Watford to Caerphilly. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

3h 42m
Duration: 167 mi
Distance: £89
Average price: Hourly
Frequency

Train

best

Take the train from Watford High Street to Queens Park (London)train Watford Junction - London Euston / ...
Take the train from London Paddington to Cardiff Centraltrain London Paddington - Swansea / ...

3h 36m

£76–136

Watford to Caerphilly train times

Trains run hourly between Watford and Caerphilly. The earliest departure is at 5:48 AM in the morning, and the last departure from Watford is at 11:33 PM which arrives into Caerphilly at 8:30 AM. All services require a transfer at Queens Park (London) and take an average of 3h 42m. The schedules shown below are for the next available departures.

Departing Sunday, November 1, 2026

6:48 PM → 10:12 PM
3h 24m • 3 changes
8:48 PM → 5:55 AM
Arrives next day
9h 7m • 3 changes
11:18 PM → 8:30 AM
Arrives next day
9h 12m • 3 changes

Departing Monday, November 2, 2026

5:48 AM → 9:11 AM
3h 23m • 3 changes
6:18 AM → 9:30 AM
3h 12m • 3 changes
6:48 AM → 10:00 AM
3h 12m • 3 changes
7:18 AM → 10:41 AM
3h 23m • 3 changes
Show more

Departing Tuesday, November 3, 2026

5:48 AM → 9:11 AM
3h 23m • 3 changes
6:18 AM → 9:30 AM
3h 12m • 3 changes
6:48 AM → 10:00 AM
3h 12m • 3 changes
7:18 AM → 10:41 AM
3h 23m • 3 changes
Show more

Departing Wednesday, November 4, 2026

5:48 AM → 9:11 AM
3h 23m • 3 changes
6:18 AM → 9:30 AM
3h 12m • 3 changes
6:48 AM → 10:00 AM
3h 12m • 3 changes
7:18 AM → 10:41 AM
3h 23m • 3 changes
Show more

Departing Thursday, November 5, 2026

5:48 AM → 9:11 AM
3h 23m • 3 changes
6:18 AM → 9:30 AM
3h 12m • 3 changes
6:48 AM → 10:00 AM
3h 12m • 3 changes
7:18 AM → 10:41 AM
3h 23m • 3 changes
Show more

Departing Friday, November 6, 2026

5:48 AM → 9:11 AM
3h 23m • 3 changes
6:18 AM → 9:30 AM
3h 12m • 3 changes
6:48 AM → 10:00 AM
3h 12m • 3 changes
7:18 AM → 10:41 AM
3h 23m • 3 changes
Show more

Departing Saturday, November 7, 2026

5:48 AM → 9:00 AM
3h 12m • 3 changes
6:48 AM → 10:00 AM
3h 12m • 3 changes
7:48 AM → 11:11 AM
3h 23m • 3 changes
8:48 AM → 12:11 PM
3h 23m • 3 changes
Show more

Frequently asked questions

Want to know about travelling from Watford to Caerphilly? 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.