Informal way to say, "excellent; correct." "First we'll go up the Sears Tower, and then we'll take a night sightseeing tour on the lake," Fran said. "That's the ticket!" Stan, an old inhabitant of Chicago, replied.
THAT'S THE TICKET!
Meaning of THAT'S THE TICKET! in English
American idioms English vocabulary. Английский словарь американских идиом. 2012