Should I buy train tickets in advance?

NBLondon

dllive said:

Hmm, Im not sure. What does that mean 'split the ticket'?

You want to go from A to B; the train stops at C.   In some cases, buying two tickets A to C and then C to B is a cheaper option even though you are on the same physical train.  You might need to move seats at C because of reservations.

May not be an option on this route.  

martindow

Looking at the small difference in price (106.50 v 99) I would be tempted to travel on the faster GWR train to Paddington.

macman

That won't reduce your journey time if you are still getting a timed train from Marylebone, nor will it reduce your TfL fare for the short Zone 1 tube journey.