From Stansted Airport train to Tottenham Hale Underground Station, Tube to St Pancras Intl (Domestic), then train to Chatham. 1hrs 31min £40. From London Stansted bus to City of London, Houndsditch (EC3), line 135 bus to Poplar, Canada Square North (E14), then bus to Luton, Bank Street. 2hrs 50min £20. From Stansted Airport, Coach Station (Stansted Aprt) bus to Chelmsford City Centre, Bus Station (Chelms Bus Stn), line 100 bus to Lakeside, Bus Station (Lakeside), bus to Bluewater, Bus Station (Bluewater Shopping Centre), then bus to Chatham Town Centre, High Street Tesco (Tesco and Gala Bingo). 3hrs 57min £21. From London Stansted drive to Chatham. 57min £11.