Theo Markettos wrote:

In uk.railway Steve M wrote:

Sounds like an opportunity to put up the ticket prices on the Stansted
Express *even more*.

Oh how I wish the Express had a premium fare and the local from
Stratford was dirt cheap...

It does... kind of.

Off peak day return:
London-Stansted Airport: 19.50
London-Stansted Mountfitchet: 13.90
Mountfitchet-Airport: 3.10

I thought there was an easement that Mountfitchet passengers could double
back via the Airport, but I can't find it right now...

Here are more CDR prices to add to that list:
London-Audley End 15.00
Stratford-Stansted Mountfitchet 13.10
Stratford-Stansted Airport 19.80
Stratford-Audley End 19.80
Stratford-London 4.10 (or 2.20 each way with Oyster PAYG)

Starting at Liverpool Street means Audley End is the best choice since
travel via Stansted Airport is permitted, as is breaking your
journey/finishing 'early'/starting 'late'.

Starting at Stratford means you can travel to the Stansteds either
directly or via Liverpool Street. You can choose either Stansted Airport
or Audley End as your destination but NOT a London Terminals origin;
WebTIS journey planners (a la NXEC) also claim you can double back at
the Airport with a ticket to Mountfitchet but I couldn't find an
easement permitting that either.

As it happens, both Stansteds are part of the 'Stansted Group' for
routeing purposes...