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Watford to Llanelli trains

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Trip Overview

The average train between Watford and Llanelli takes 4h 25m and the fastest train takes 4h 2m. There is a train service every few hours from Watford to Llanelli. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

4h 25m
Duration
216 mi
Distance
£117
Average price
Hourly
Frequency

Train

best
  1. Take the train from London Paddington to Swanseatrain train London Paddington - Swansea / ...
4h 44m
£97–180

Watford to Llanelli train times

Trains run hourly between Watford and Llanelli. The earliest departure is at 5:48 AM in the morning, and the last departure from Watford is at 9:48 PM which arrives into Llanelli at 5:31 AM. All services require a transfer at Queens Park (London) and take an average of 4h 25m. The schedules shown below are for the next available departures.

Departing Monday, October 12, 2026

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Great Western Railway (GWR)4h 4m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 6m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 15m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Great Western Railway (GWR)4h 7m • 3 changes
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Departing Tuesday, October 13, 2026

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 12m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 10m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 16m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Great Western Railway (GWR)4h 9m • 3 changes
  • Show more

Departing Wednesday, October 14, 2026

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 12m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 10m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 16m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Great Western Railway (GWR)4h 9m • 3 changes
  • Show more

Departing Thursday, October 15, 2026

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 12m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 10m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Transport for Wales4h 16m • 3 changes

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    London OvergroundLondon Underground (Tube)Great Western Railway (GWR)Great Western Railway (GWR)4h 9m • 3 changes

Frequently asked questions

Want to know about travelling from Watford to Llanelli? 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.

Map of how to get from Watford to Llanelli.ExpandLaunch map view
  • Distance: 216 mi
  • Duration: 4h 25m

What companies run services between Watford, England and Llanelli, Wales?

Great Western Railway (GWR) operates a train from London Paddington to Swansea hourly. Tickets cost £80–150 and the journey takes 2h 47m.

Operators