Trains of the Leeds to Morecambe Line and Settle-Carlisle Line also run over the Airedale Line from Leeds.
Beyond this point the Metro fares do not operate.
Recent Network Rail reports have looked at ways of increasing capacity on the line. Because of the difficulty of lengthening platforms at Shipley, it will be hard to introduce longer trains (i.e. 5 or 6 carriages) as is being proposed on the neighbouring Wharfedale Line. It is therefore proposed to run more trains per hour between Leeds and Keighley, with a new platform at Keighley to accommodate this. New stations at Kirkstall Forge and Apperley Bridge between Leeds and Shipley are proposed by Metro.
National Express East Coast (NXEC) currently operate a small number of daily services on the line, between Skipton/Bradford and Leeds before heading to London King's Cross. These are mostly diesel services, because the overhead electric cables on the line between Shipley and Skipton cannot support both local trains and high-speed electric services (due to the extra power needed by the locomotives). NXEC wants to run more frequent services from December 2009 but to do so would require the use of electric locomotives, which cannot happen unless the electric supply is upgraded.
A recent report by Modern Railways claimed that a solid hourly service would operate on the line as far as Long Preston, but would serve Carlisle and Lancaster alternately. It may also become a freight artery to improve capacity on the West Coast Main Line. Network Rail's own latest plans involve new signalling and other improvements for the sections of the line beyond Skipton. Carlisle services will be increased to a basic two hour pattern with extra services to 'fill in the gaps' at peak times during the day to give a 1 train/h frequency. Lancaster services will also be made more frequent, however it has been suggested they will be terminated at Skipton in future, rather than continuing through to Leeds as at present. All of these plans are still dependent on getting enough government funding.