American Sports Centers, Anaheim - field space is available for futsal play. Call for pricing
Address: 1500 S Anaheim Blvd #110, Anaheim, CA 92805
Phone: (714) 917-3600
The Factory, Brea - usually available between 2pm-5:30pm. Renting space is $40 per hour if you run it yourself. To use a certified trainer is $120 per hour. Other times may be available, call for availability.
Address: 312 Oak Pl, Brea, CA 92821
Phone: (714) 987-1099
YMCA Fullerton - They have their own leagues but there are also times to rent the indoor/outdoor field which is turf.
Address: 2000 Youth Way, Fullerton, CA 92835
Next Level Sports - they are a very large indoor facility with both hardcourt and turf fields for rent. Call for pricing.