There are 2 train companies operating 2 routes - SN 60, 123 (GW). The cheapest train costs $42 and is 4h 2min.
Faretrotter is a travel aggregation resource that gathers travel company amenities and statistics and compares modes of transportation between cities. Use Faretrotter to plan your next trip, or purchase a ticket your next city.
There are 4 ways to travel from Brighton to Chepstow. 4 buses, 2 trains, 1 flight and 1 by car are possible between the two areas. The by car from Brighton to Chepstow is the cheapest. The by car from Brighton to Chepstow is the fastest. The train operated by running from Brighton to Severn Beach is the most convenient.
It's important to check each mode when booking your ticket so that you can find the best method for you. The cost of each type varies differently, so be sure to use Faretrotter to keep an eye out!