Final answer:
Delta's dispatchers are represented by the Professional Airline Flight Control Association (PAFCA).
Step-by-step explanation:
Delta's dispatchers are represented by the Professional Airline Flight Control Association (PAFCA), which is the labor union that represents the interests of flight dispatchers working for Delta Air Lines. PAFCA negotiates collective bargaining agreements on behalf of the dispatchers to establish their wages, benefits, and working conditions.