The average bus between Watford and St Pancras International Station takes 1h 43m and the fastest bus takes 1h 19m. The bus runs at least 2 times per hour from Watford to St Pancras International Station. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 30 minutes between Watford and St Pancras International Station. The earliest departure is at 12:35 AM at night, and the last departure from Watford is at 11:35 PM which arrives into St Pancras International Station at 1:32 AM. All services require a transfer at Black Boy PH and take an average of 1h 43m. The schedules shown below are for the next available departures.


1h 47m • 2 changes
Arrives next day


1h 43m • 2 changes
Arrives next day


1h 57m • 2 changes


1h 57m • 2 changes


1h 57m • 2 changes


1h 57m • 2 changes


1h 40m • 2 changes


1h 57m • 2 changes


1h 57m • 2 changes


1h 57m • 2 changes


1h 40m • 2 changes
Want to know about travelling from Watford to St Pancras International Station? 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 bus from Watford to St Pancras International Station. However, there are services departing from Watford station and arriving at St Pancras International Station station via Black Boy PH. The journey, including transfers, takes approximately 1h 43m.
Watford to St Pancras International Station bus services, operated by Arriva UK, depart from Clarendon Road station.
Watford to St Pancras International Station bus services, operated by Arriva UK, arrive at Baker Street Station.
The distance between Watford and St Pancras International Station is 23.4 km. The road distance is 41 km.
You can take a bus from Clarendon Road to British Library via Black Boy PH, Baker Street Station, and Old Marylebone Town Hall in around 1h 30m.