Leeds to London regular commute - cheapest way

[Deerfold]

Briefly, because it wasn't planned or wanted.

Indeed. My point was more that the OP need not buy a York-London ticket to enjoy the extra validity.
In fact, in the unlikely event of the OP wanting to do even more rail travel, it's valid via large swathes of the Midlands too.

 

[JB_B]

That works both ways - a Leeds to London season is valid via York. A few years ago that validity did disappear from the routeing guide, but only briefly.

Indeed. My point was more that the OP need not buy a York-London ticket to enjoy the extra validity.
In fact, in the unlikely event of the OP wanting to do even more rail travel, it's valid via large swathes of the Midlands too.

That's right. Ex York and Ex Leeds to London give you almost exactly the same routes but there are some minor differences in validity as they're expressed over different map combinations.

As far as I can see a season ticket from Poppleton is the same price and since Poppleton passes the fares check for both York and Leeds as origins that would get you both sets of routes.

 

[greyman42]

That's right. Ex York and Ex Leeds to London give you almost exactly the same routes but there are some minor differences in validity as they're expressed over different map combinations.

What are the differences?

 

[JB_B]

What are the differences?

From York you get Worksop-Nottingham but you don't have Pontefract-Doncaster direct.

From Leeds it's the other way round.

 

[greyman42]

From York you get Worksop-Nottingham but you don't have Pontefract-Doncaster direct.

From Leeds it's the other way round.

So would York-Retford-Worksop-Nottingham-St.Pancras be valid?

 

[JB_B]

So would York-Retford-Worksop-Nottingham-St.Pancras be valid?

For a York to London route: Any Permitted ticket?

I think so, yes.

That route is traceable on map EY. (No station is passed through twice and there's no relevant negative easement as far as I can see.)