Watford Junction to Caerphilly Buses

Watford Junction to Caerphilly buses

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Trip Overview

The average bus between Watford Junction and Caerphilly takes 5h 37m and the fastest bus takes 4h 19m. There is a bus service every few hours from Watford Junction 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.

5h 37m
Duration: 160 mi
Distance: £32
Average price: Hourly
Frequency

Bus via Kingsway K14

best

Take the bus from Watford Junction station to Heathrow Terminal 2bus Ra3
Take the bus from Heathrow Central Bus Station to Kingsway K14bus 201 / ...
Take the bus from Market Square 22 to Caerphilly Library / The Twynbus 50A / ...

4h 31m

£25–45

Watford Junction to Caerphilly bus times

Buses run hourly between Watford Junction and Caerphilly. The earliest departure is at 6:04 AM in the morning, and the last departure from Watford Junction is at 10:58 PM which arrives into Caerphilly at 7:40 AM. All services require a transfer at Heathrow Terminal 2 and take an average of 5h 37m. The schedules shown below are for the next available departures.

Departing Wednesday, October 21, 2026

4:25 PM → 9:41 PM
5h 16m • 2 changes
5:04 PM → 10:41 PM
5h 37m • 2 changes
6:14 PM → 11:41 PM
5h 27m • 2 changes
10:58 PM → 7:40 AM
Arrives next day
8h 42m • 2 changes

Departing Thursday, October 22, 2026

6:05 AM → 11:18 AM
5h 13m • 2 changes
6:50 AM → 12:18 PM
5h 28m • 2 changes
8:00 AM → 1:18 PM
5h 18m • 2 changes
8:52 AM → 2:18 PM
5h 26m • 2 changes
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Departing Friday, October 23, 2026

6:05 AM → 11:18 AM
5h 13m • 2 changes
6:50 AM → 12:18 PM
5h 28m • 2 changes
8:00 AM → 1:18 PM
5h 18m • 2 changes
8:52 AM → 2:44 PM
5h 52m • 2 changes
Show more

Departing Saturday, October 24, 2026

6:04 AM → 11:18 AM
5h 14m • 2 changes
7:22 AM → 12:18 PM
4h 56m • 2 changes
8:22 AM → 1:18 PM
4h 56m • 2 changes
9:04 AM → 2:18 PM
5h 14m • 2 changes
Show more

Departing Sunday, October 25, 2026

7:02 AM → 12:27 PM
5h 25m • 2 changes
9:04 AM → 2:27 PM
5h 23m • 2 changes
11:02 AM → 4:27 PM
5h 25m • 2 changes
2:02 PM → 6:57 PM
4h 55m • 2 changes
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Departing Monday, October 26, 2026

6:05 AM → 11:18 AM
5h 13m • 2 changes
6:50 AM → 12:18 PM
5h 28m • 2 changes
8:00 AM → 1:18 PM
5h 18m • 2 changes
9:04 AM → 2:18 PM
5h 14m • 2 changes
Show more

Departing Tuesday, October 27, 2026

6:05 AM → 11:18 AM
5h 13m • 2 changes
6:50 AM → 12:18 PM
5h 28m • 2 changes
8:00 AM → 1:18 PM
5h 18m • 2 changes
9:04 AM → 2:18 PM
5h 14m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Watford Junction 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.