From Bedford train to London St Pancras International, walk to King's Cross St. Pancras Underground Station, then Tube to Hounslow East Underground Station. 1 h 27 min £26. From Bedford train to St Albans City Railway Station, bus to Heathrow Central Bus Station, then line 111 bus to Hounslow, Douglas Road (TW3). 3 h 10 min £22. From Bedford drive to Hounslow. 1 h 6 min £11.