FWIW Google maps says 3hr 33mins quickest. So unless you are one that leaves early you are going to be pushing it although a lot of dual carriage way and motorway to enable you to put your foot down. Good luck
Last time I went to Swansea it was on the team coach as a guest of Ken Craggs and they played at the Vetch field. How times change we left Brighton at about 12 noon for an evening game the players had rooms, I think it was Holiday Inn to relax and we played the game in the evening. While...