Main Line to The South - Part 2: St. Cross (Winchester) to Eastleigh and SwaythlingMain Line to The South Part 2: St. Cross (Winchester) to Eastleigh and Swaythling RRP is 34. 95 NOW JUST 24. 95 The London and Southampton Railway opened its line in 1840, the first major railway in the south of England soon to become the London & South Western Railway and eventually in 1923 the Southern Railway. Part 1 was concerned with the line from Basingstoke to Winchester. Continuing our journey, Part Two describes the line through to Eastleigh