Season tickets from Harlington or Flitwick to London are the same price. The same goes for Harlington or Flitwick to St Albans. The two stations are described as being in the 'same area' on Wikipedia. What does this mean? Is a season ticket from London to Harlington valid for travel to Flitwick?
https://en.wikipedia.org/wiki/Harlington_railway_station
https://en.wikipedia.org/wiki/Flitwick_railway_station
https://en.wikipedia.org/wiki/Harlington_railway_station
https://en.wikipedia.org/wiki/Flitwick_railway_station