Paul Corfield wrote:

(snip)

You are entitled to one full journey on LUL on the outward and return
legs. The only way you could "break" a journey is at an out of station
interchange where the gates are configured to allow such a break but
with a time limit in place.
--
Paul C


Out of interest, do you know how long that time limit is?

I presume the same time limit applies for Oyster Pre-Pay in similar
out-of-staion interchange situations?

I've also wondered if Oyster Pre-Pay allows for such out-of-station
interchanges at more locations than paper ticketing would. An example -
I recently travelled from Harrow & Wealdstone to Euston (on
Silverlink), then on south via the Northern Line to Balham. I was
pleased to see the following when I checked my Oyster journey history
on a Tube ticket machine...

Harrow & Wealdstone - Euston
Harrow & Wealdstone - Balham

.... i.e. the whole journey of Harrow & Wealdstone to Balham had been
treated as one. I've never done the aforementioned journey on a £3.80
tube single ticket but if I did I would fear that it'd be swallowed by
the ticket gates at Euston with the presumption that I'd completed my
journey.