Due to scheduled engineering work at Three Bridges no trains will operate south of Gatwick Airport this weekend.
All services to London start from Gatwick- no Gatwick Express will run, only 2 or 3 Southern trains per hour (depending on the time of day) will run to Victoria and 4 Thameslink trains an hour will run to Bedford via Central London.
From Three Bridges connecting bus services will run to Brighton, Lewes and Horsham. (all for trains to all other destinations).