From Stansted Airport train to Tottenham Hale, train to Stratford DLR Station, train to Stratford International, then train to Chatham. 1hrs 34min £40. 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). 4hrs 07min £15. From London Stansted drive to Chatham. 57min £11.