Apologies if this is a silly question. I'm travelling from Heathrow to Tower Bridge in a few days, and Citymapper tells me that the fare will be £3.10 off-peak. I can't figure out why and think I am misunderstanding how the fares are actually calculated. I will be taking one tube from zone 6 to 2 (Heathrow Terminals 1,2,3 to Hammersmith). This costs me £1.50 off-peak. From here I'd take a tube to Monument station (zone 2 to zone 1) which costs £2.40 off-peak. This adds up to £3.90.
https:/…underground.htm This website states that travelling zone 1 to 6 is £3.10, but I am taking 2 separate journeys so if I use pay as you go, would I be charged £3.90 or £3.10? I want to make sure I top up enough as I plan to only use £10 credit to get me to and from Heathrow, and then buy a 7 day travelcard on top of this.
Any explanation is greatly appreciated.Edited: 19 August 2017, 08:12