From Heathrow Airport London bus to Cirencester. 1 h 25 min £22. From Heathrow Central Bus Station bus to Oxford City Centre, Carfax (Stop I1), bus to Oxford, Osney Island (Bridge St corner), bus to Swindon, Bus Station, then bus to Cirencester, Abbey House. 4 h 51 min £26. From London Heathrow Airport (LHR) drive to Cirencester. 1 h 22 min £16. From London Heathrow Airport towncar to Cirencester. 1 h 22 min £177.