VIRGIN BUSES is the name of a new Watford Junction to Heathrow Airport coach link service, with four coaches finished in the distinctive Virgin Trains colour scheme. Coaches run half-hourly through most of the day, seven days a week, with an average journey time of 40 minutes to Terminal 4 and 65 minutes to Terminal 1, also serving Terminals 2 and 3. Connecting with Virgin's long-distance Pendolino services from the West Midlands, North West and Cumbria/Scotland at Watford Junction, the Airport Coach Link provides a hassle-free alternative for travellers to Heathrow Airport. The coaches also connect with the Silverlink County outer suburban rail network from stations in Northamptonshire, Buckinghamshire and Hertfordshire. The rail-air link is also available to non-rail users between Watford and Heathrow Airport and tickets can be bought from the driver on the coach.
http://www.virgin.com