season ticket
US /ˈsiː.zən ˌtɪk.ɪt/
UK /ˈsiː.zən ˌtɪk.ɪt/

1.
a ticket that can be used for a series of events or for a period of time
:
•
I bought a season ticket for the football matches.
•
A season ticket offers unlimited travel on the bus for a month.