Swansea railway station serves the city of Swansea, Wales. It is 216 miles 7 chains (348 km) measured from London Paddington on the National Rail network.

Paddington, also known as London Paddington, is a London railway station and London Underground station complex, located on Praed Street in the Paddington area. The site has been the London terminus of services provided by the Great Western Railway and its successors since 1838. Much of the main line station dates from 1854 and was designed by Isambard Kingdom Brunel. As of the 2022–23 Office of Rail & Road Statistics, it is the second busiest station in the United Kingdom, after London Liverpool Street, with 59.2 million entries and exits.