From Heathrow Terminal 1 train to Paddington (H&C Line)-Underground, Tube to London Liverpool St, then train to Colchester. 1hrs 39min £39. From Heathrow Central Bus Station line 250 bus to Colchester Town Centre, Stanwell Street (Colch Bus Stn). 2hrs 35min £16. From London Heathrow drive to Colchester. 1hrs 35min £23.