The Airedale Line is the name given to one of the rail services in the West Yorkshire Metro area centred on West Yorkshire in northern England. The service is operated by Northern, on the route connecting Leeds and Bradford with Skipton. Some services along the line continue to Morecambe or Carlisle. The route covered by the service was historically part of the Midland Railway. According to SELRAP, the Airedale Line is the most heavily utilised passenger route outside the South East of England.