The Abbey Flyer is a 'pay-train'.
This means you can board the train at any
station and buy a ticket from the onboard
conductor.
If you have an onward connection and have
not been able to purchase a ticket by the
time you get to Watford Junction, you can
buy one there at the excess fare window.
Conductors will accept cash, credit or debit
cards. Ticket machines are also available
at Watford Junction and St Albans Abbey (currently
this one is card only).
Weekly season tickets can be purchased from
the on-board conductor.
Penalty fares do not apply for journeys on
the Abbey Line.