Reply To: London Euston to Watford Junction train service query Home › Forums › Fare and Capping Queries › London Euston to Watford Junction train service query › Reply To: London Euston to Watford Junction train service query 29/06/2022 at 16:59 #3974 MikeModerator Hi Talster, Yes, you touch in and out in the same way as you do for the Underground. There appear to be 4 trains an hour for each of West Midlands and London Overground.
