From Heathrow Terminals 1-2-3 Underground Station Tube to King's Cross St. Pancras Underground Station, walk to London St Pancras International, then train to Leicester. 2 h 15 min £46. From Heathrow Central Bus Station bus to St Margaret's Bus Station. 2 h 20 min £24. From London Heathrow Airport (LHR) drive to Leicester. 1 h 46 min £20. From London Heathrow Airport towncar to Leicester. 1 h 46 min £210.