The calculated distance (air line) between Litherland and Lytham St Annes is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Lytham St Annes is certainly longer, as only the direct route (as the crow flies) between Litherland and Lytham St Annes has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles