From Orange County:
91 Freeway East (toward Riverside) to I-15 North, Off at 6th Street. East (right) to Arena

From Los Angeles, Pasadena, Ontario, Etc
60, 10, or 210 Freeways (East toward San Bernardino/Palm Springs) to I-15 South. Off at 6th Street (left). East to Arena

From San Diego, Temecula, Etc
I-15 North (past the 91) to 6th Street. East (right) to Arena

From Riverside, Moreno Valley, Etc
91 Freeway West to I-15 North. Off at 6th Street. East (right) to Arena