Check TfL zone
Find out which London Underground zone your destination station is in. TfL have a helpful tube map here. Westminster is in Zone 1 for example.
Enter Zone U
Using our app, website or ticket machines, enter “Zone U*** London”, and select the option which covers all the zones you need to travel through.
As an example, if you were travelling to Westminster tube station you would enter “Zone U1234 London”.
Buy your tickets as you normally would! You’ll need to opt to collect them at the station (or have them posted to you).