South Western Railway have a £15 single promo that has just gone live. Details are as follows:
The offer is valid between London Zones 1 – 6 stations on the SWR network and Weymouth, Upwey, Dorchester South, Moreton, Wool, Wareham, Holton Heath, Hamworthy, Poole, Parkstone, Branksome, Bournemouth, Pokesdown for Boscombe, Christchurch, Hinton Admiral, New Milton, Sway, Romsey, Mottisfont & Dunbridge, Dean, Salisbury, Warminster, Tisbury, Gillingham, Templecombe, Sherborne, Yeovil Pen Mill, Yeovil Junction , Castle Cary, Bruton, Frome, Westbury, Trowbridge, Bradford on Avon, Crewkerne.
www.southwesternrailway.com/destinations-and-offers/offers/summer-weekends