<P> The Oxford to London coach route is an express coach route between Oxford and London along the M40 motorway . The Oxford Tube, which is operated by Stagecoach in Oxfordshire, runs up to five coaches an hour via Lewknor, Hillingdon and Shepherd's Bush terminates on Buckingham Palace Road, Victoria . The X90, which is operated by the Oxford Bus Company, runs up to three coaches an hour via Baker Street and terminates on Buckingham Palace Road . </P> <P> With a total of 150 journeys a day in each direction it is the highest frequency long distance coach route currently operating in the United Kingdom . By way of comparison, there are 15 coach journeys a day from Cambridge to London . </P>

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