If you qualify for certain groups, you can access consistent discounts that aren't available to the general public.
If you are a student, teacher, veteran, or non-profit worker, you can join the Theatre Development Fund (TDF) for an annual fee to buy tickets for as low as $11–$59. how to buy cheap tickets on broadway
Most modern Broadway shows offer a limited number of deeply discounted tickets ($30–$45) daily through lotteries or "rush" programs. If you qualify for certain groups, you can