Look for flamenco classes and programs offered in your area. Online resources such as Craigslist and community centers typically list programs and classes. You can also scour your local weekly newspaper for classes and workshops. Look at when the classes are offered, where the studio is located, how much class time you get for your money and the instructor's background. Most program websites offer information on company and staff experience. Contact the school and ask about a free trial class or at the opportunity to sit in a class.
Typically, the more renowned and experienced the instructor is, the pricier the classes, but you may find a deal. Beware of schools that charge you separately for each dance "form" rather than offering a comprehensive course, or some that offer a degree. A school like this may focus on making money more than teaching their students. However, programs that offer to teach you absolutely everything about flamenco in a short amount of time may not provide you with the strong basic technique required to grow in your art. Look for a basic course that offers basic foot and arm technique as well as spinning. A basic course should also introduce you to to a range of sevillanas -- basic dance forms. Less or more than this may present a less than ideal training experience.
Know what to look for when you attend your trial class. The class time should be well structured, with time spent on footwork, arm-work, spinning and learning sevillana choreography. An organized instructor wastes little time before class and during breaks -- though short breaks do help students during long sessions. Your instructor may demonstrate a sevillana or step, but beware of instructors who spend too much time "demonstrating" performances to their students. You'll learn best by doing the footwork yourself, not looking on. You should feel encouraged and motivated by your teacher. A strong mentor has a strong rapport with students and uses positive teaching techniques, not belittling or negativity. You may have to attend several classes to find the best one for you.
Your training's success relies on you following up on classwork. Practice daily to allow your body to memorize basic techniques so you can eventually move on to artistic expression and musicality. Attend workshops and flamenco performances whenever possible. Listen to flamenco music and familiarize yourself with the style's music patterns and arrangements. A strong dancer needs a musical ear. Attend class consistently, arriving on time and warmed up. Take opportunities to work with guest instructors and perform in front of people.