Save time at the station by using contactless or Oyster to tap in and out for most London–Gatwick rail routes
https://lorenzoobxe263.yousher.com/how-to-get-to-gatwick-by-train-a-traveller-s-guide-2
Save time at the station by using contactless or Oyster to tap in and out for most London–Gatwick rail routes. It’s quick, no paper tickets needed, and caps may apply.