Show / Theater Ticktes at 1/2 price: LA StageTIX

More than 230 Performing Arts stages and groups participate in this program and offer discounted, last-minute tickets for hundreds of performances.
Among them...
LA Opera, Actors Gang, LA Master Chorale, CTG: Ahmanson, CTG: Mark Taper Forum, East West Players, A Noise Within, La Mirada Theatre for the Performing Arts, REDCAT, Geffen Playhouse, UCLA Live,...

You can buy these tickets online or at the L.A. Visitor Information Centers:

Hollywood & Highland Center
6801 Hollywood Blvd.
Hollywood, CA 90028
323.467.6412

Downtown
685 S. Figueroa St.
Los Angeles, CA 90017
213.689.8822

The Website of LA StageTIX, see link further below, offers also a newsletter.