Yes, driving takes about 3 hours and 30 minutes via the M4 and M25.

Is it cheaper to fly?

No, there are no practical flight options.

National Express operates coaches, but they are significantly slower.

Haverfordwest

Watford

Train

Haverfordwest to Watford

Updated: 29 May 2026

The journey from Haverfordwest to Watford is best made via London. You will take a Transport for Wales service to Cardiff, then a GWR train to London Paddington. From there, you must navigate to London Euston for the London Northwestern Railway service to Watford. The total distance is approximately 330 km. This route takes you from the Welsh coast to the town of Watford.

Total Distance: Driving distance 330 km, straight-line air distance 260 km.

Fastest Way

Train via London, taking approximately 4 hours and 30 minutes.

Cheapest Way

Advance train tickets booked 8-12 weeks in advance.

Compare Haverfordwest to Watford Routes

Train

Connecting

Duration

5 hours

Avg Price

75-150 GBP

Operator

Transport for Wales / GWR / London Northwestern Railway

Route

Haverfordwest to Cardiff, Cardiff to London, London to Watford.

Euston station is a short taxi or tube ride from Paddington.

Travel Tips

London Transfer
Use the Circle line for a direct connection between Paddington and Euston.
Booking
Use the Trainline app to manage your tickets and connection times.
Walking
Watford is a walkable town, perfect for exploring on foot.
Studio Tour Entry
Book your tickets well in advance as they sell out quickly.
Luggage
Use station lockers if you arrive early.