(02 Jun 2016, 11:17 am)NK53 TKT wrote I definitely won't be going Grand Central as it would take longer and I need to be at Gatwick by 20:30 and if I get on the 16:00 VTEC train from Newcastle I can get there at 20:15, just the flight leaves at 10:20 in the morning
I think cases and the Victoria line would be a nightmare I should imagine. Even on my frequent hops on the Piccadilly line to LHR, which is meant to have extra case room, there's not that much extra. The Thameslink trains are quite spacious and at that time, they won't be too bad from experience. The standard off-peak single fare looks to be about £10. I'm sure they do advance tickets for cheaper.