Is Watford in London?

No, it is in Hertfordshire, just outside London.

Can I use my Oyster card?

Yes, it is valid for the entire journey.

Is there a direct train?

No, you must change in central London.

What is the best way to travel?

Train is generally more reliable than driving on the M25.

South Croydon

Watford

Train Driving

South Croydon to Watford

Updated: 28 May 2026

The journey from South Croydon to Watford takes you from the southern suburbs of London into Hertfordshire. The most efficient route is taking a train from East Croydon to London Bridge, then the Northern Line to Euston, and finally a fast train to Watford Junction. This journey covers approximately 45 km and takes about 90 minutes. Watford is a major town known for its shopping and proximity to the Warner Bros. Studio Tour.

Total Distance: 45 km driving distance, 40 km straight-line air distance.

Fastest Way

Train, 1 hour 30 minutes, avoiding M25 traffic.

Cheapest Way

Train, 18.00 GBP, using an off-peak travel card.

Compare South Croydon to Watford Routes

	Train Connecting	Driving Direct
Duration	1 hour 30 mins	1 hour 40 mins
Avg Price	18.00 GBP	15.00 GBP fuel
Operator	Southern and London Northwestern Railway	Personal Vehicle
Route	East Croydon to London Bridge, then Euston to Watford Junction.	M25 motorway.
Tip	The fast train from Euston to Watford Junction takes only 20 minutes.	Watford has several large car parks, but they can be pricey.

Travel Tips

Euston Station
Euston is a busy station; check the departure boards early for your platform.
Train Tickets
Book your train tickets in advance to save money on the fare.
Oyster/Contactless
Ensure your card is valid for travel to Watford Junction.
Rush Hour
Avoid the morning and evening peak times for a more comfortable journey.
Connectivity
Use the free Wi-Fi at Watford Junction to plan your onward travel.

Safety Tips

Station Safety
Stay alert in busy London stations like London Bridge and Euston.
Late Travel
If traveling late, use official taxi services from Watford Junction.
Emergency Help
Know the location of the nearest help point in the station.
Personal Belongings
Keep your bag secure at all times in crowded areas.