Save money by using contactless or Oyster on the tube and Elizabeth line; fares cap daily

https://andyhiic885.tearosediner.net/london-to-heathrow-transport-best-route-by-time-of-day-and-budget-1

Save money by using contactless or Oyster on the tube and Elizabeth line; fares cap daily, and you won’t need to queue for paper tickets at stations.