Originally Posted by
D7666
Agreed, and I had thought of it is a Thameslink operation.
I had not thought of it being directly part of the train service specification and/or commitments though, but thinking on it now you are probably right.
Luton Airport is part of the national rail network, coded LUA, and can be through ticketed from any other national rail station. Anyone with a valid ticket to LUA turning up at the Parkway has to be carried hence the service still running albeit at the moment 'on demand'.