kieron
Established Member
Picking up on this, you can go further between stops on a non-London train.Similarly there is one northbound TPE (M-F) that runs non stop Carlisle - Haymarket.
EDIT - I've found one that trumps that - the 18.40 Glasgow Central to Birmingham New Street on Saturdays, runs non stop Glasgow-Carlisle (102 miles)
The 0825 from Glasgow Central to Manchester Victoria (which happens to be the only train all week between those stations) is also non-stop between Glasgow and Carlisle, but that one goes via Bellshill between Uddingston and Motherwell. According to railmiles, this is a 103.3 mile non-stop run.
On another tangent, the train above takes 1 hour 21 minutes between stops, using WTT times.
When it's not diverted, the Tuesday-Friday 03:25 from Sheffield to Manchester Airport goes from Sheffield to Manchester Piccadilly non-stop via Swinton and Wakefield Kirkgate, taking 1 hour 27 minutes to cover the 67.6 mile journey. There are London trains all day with more than 2 hours between stops, but I don't know if there's a longer journey in this sense on a train which doesn't go to London.
Apart from sleepers (which are deliberately slow), I don't know if there's a train with a longer gap between stops where this isn't between London and the stop after it, either.