This depends on which train you take. There is a quick train that makes a few stops on the way, it gets to Horsham and then splits into a fast train going to Portsmouth (with a stop at Barnham - you then need to change trains, go under the subway to platform 1, that's where the Bognor train gets in). SO, fast train would take about 1hr 20 mins. The slower train, which stops at every little station along the way is more like 1hr 40 mins up to 2 hrs.
About 5 miles
It takes about 45 minutes by car and a bit quicker by train (30 - 40 mins) costing about £6 for a return ticket.
District Line (London Underground) from Hammersmith tube station to Victoria tube station.
go by train
With difficulty. You will have to take the overhead train from Colchester to Liverpool Street Station, then the underground to Victoria Station and then the overhead to Gatwick.
About £15
There is no such station as Liverpool Victoria. Do you mean Liverpool Lime Street?
M1 2PB
Castleton, for trains into Manchester Victoria
About 2 miles.
Gatwick Express. The train goes to Victoria Station and the journey takes about 30 minutes.
platform 1 and 2