From Stansted Airport train to Tottenham Hale Underground Station, Tube to London St. Pancras International, then train to Chatham. 1hrs 31min £35. From London Stansted bus to City of London, Houndsditch (EC3), bus to Tower Hill, The Tower Of London, then bus to Lordswood, Shawstead Road (Princes Avenue). 2hrs 47min £26. From London Stansted drive to Chatham, Kent. 1hrs 20min £11.