advance ticket; pre-sale ticket
A ticket purchased before the event date, often at a discount. Common for concerts, movies, and exhibitions.
The advance tickets for the concert are already sold out.
It's a bit cheaper if you buy an advance ticket.
You can purchase advance tickets starting one month before the show.
Advance tickets for the concert go on sale starting tomorrow.
Because the show was popular, the advance tickets sold out immediately.
I reserved advance tickets by phone.