What is the easiest and cheapest way to get to Luton airport from Watford?
I know Arriva run a 321 bus service but judging by the timetable, not all services terminate at the airport.
Has anyone walked from Church St, Luton (where those other services terminate) to the airport?
Google Maps tells me it's a 25 minute walk and I'm lightly packed but as I've never walked it, I'm a bit wary of doing it if there are other ways.
I want to avoid taking a train from Watford Junction to London Euston, walking to King's Cross and taking a train to Luton airport from there.