The average train between Heathrow Terminal 4 and Haverfordwest takes 6h 9m and the fastest train takes 5h 10m. The train service runs several times per day from Heathrow Terminal 4 to Haverfordwest. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 4 hours between Heathrow Terminal 4 and Haverfordwest. The earliest departure is at 6:00 AM in the morning, and the last departure from Heathrow Terminal 4 is at 10:00 PM which arrives into Haverfordwest at 8:25 AM. All services require a transfer at London Paddington and take an average of 6h 9m. The schedules shown below are for the next available departures.


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5h 39m • 2 changesWant to know about travelling from Heathrow Terminal 4 to Haverfordwest? 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.
No, there is no direct train from Heathrow Terminal 4 to Haverfordwest. However, there are services departing from London Paddington station and arriving at Haverfordwest station via Swansea station. The journey, including transfers, takes approximately 6h 9m.
Heathrow Terminal 4 to Haverfordwest train services, operated by Great Western Railway (GWR), depart from London Paddington station.
Heathrow Terminal 4 to Haverfordwest train services, operated by Transport for Wales, arrive at Haverfordwest station.
Book your Heathrow Terminal 4 to Haverfordwest train tickets online with Omio.
The distance between Heathrow Terminal 4 and Haverfordwest is 314.2 km. The road distance is 365 km.
You can take a train from Heathrow Terminal 4 to Haverfordwest via London Paddington and Swansea in around 6h 24m.