Is Watford in London?

No, it is in Hertfordshire, but it is part of the London commuter belt.

Can I use an Oyster card?

Yes, for the London Underground portion of the trip.

The M25 can be difficult, but the route is straightforward.

What is the best time to travel?

Mid-morning or mid-afternoon to avoid rush hour.

Poole

Watford

Train Driving

Poole to Watford

Updated: 30 May 2026

The journey from Poole to Watford is approximately 170 km. By train, you travel from Poole to London Waterloo, take the Underground to London Euston, and then catch a London Northwestern Railway service to Watford Junction. This takes about 3 hours. Driving via the A338, M3, and M25 is a direct route but subject to heavy traffic. Watford is a major town with excellent connections to London, making it a popular commuter base. Rail is the most reliable method for this journey.

Total Distance: 170 km driving, 155 km air distance.

Fastest Way

Driving, during off-peak hours.

Cheapest Way

Train, if booked as an Advance ticket.

Compare Poole to Watford Routes

	Train Connecting	Driving Direct
Duration	3 hours	2 hours 30 mins
Avg Price	45-95 GBP	30-50 GBP fuel
Operator	South Western Railway and London Northwestern	Personal Vehicle
Route	Poole to London Waterloo, transfer to Euston, then to Watford Junction.	A338 to M3, M25, and M1 to Watford.
Tip	Watford Junction is a major hub with frequent trains to London.	Use the M25 junction 19 for the easiest access to Watford.

Travel Tips

Euston Transfer
The walk from Waterloo to Euston is not possible; use the Underground.
Advance Tickets
Book at least 8 weeks in advance for the best train prices.
Traffic
The M25 is very busy; plan your drive for mid-day.
Parking
Use the car parks at Atria Watford for easy access to the town.
Apps
Use the Citymapper app for navigating London transfers.