Chiltern Railways

Chiltern Railways is a train operating company in England. It operate train services out of Marylebone railway station between London, Aylesbury and Birmingham's Snow Hill station.

The London to Birmingham route used by Chiltern Railways, goes via High Wycombe, Bicester, Banbury and Leamington Spa. The Aylesbury branch shares tracks with London Underground's Metropolitan Line as far as Amersham.