From Heathrow Terminals 1-3 train to Lancaster Gate Underground Station, Tube to London Liverpool Street, then train to Colchester. 1hrs 42min £42. From Heathrow Central Bus Station line 250 bus to Colchester Town Centre, Stanwell Street (Colch Bus Stn). 2hrs 27min £22. From Heathrow Airport London bus to Colchester. 2hrs 30min £59. From London Heathrow Airport (LHR) drive to Colchester. 1hrs 35min £22.