Thanks, Mike! Is that the one-way fare from Willesden Junction to Watford Junction? I’m asking so I know how to search for the fare on my own in the future when the new fares are announced.
Per Google Maps, from Euston Station, I must get on a West Midlands Railway bound for Milton Keynes Central with stops at Harrow & Wealdstone and Bushey before getting to Watford Junction. So, please correct me if I am wrong, but even if my train does not stop at Willesden Junction, at the moment the extension fares from Euston to Watford are £4.80 peak (0630-0930) and £2.20 off-peak. Is that right?