American Airlines, Delta Air Lines, JetBlue, and United operate frequent nonstop and connecting flights between New York City (All Airports) (NYCA) and Miami (All Airports) (MIAA) in October. American often offers extensive nonstop schedules from JFK and MIA hubs, Delta provides competitive schedules and SkyMiles benefits, JetBlue is known for value and comfort on trans-regional routes, and United provides connections via Newark. Evaluate seat pitch, baggage allowance, change/cancellation policies, and loyalty program perks when booking October travel; low-cost carriers or alternate airports like Fort Lauderdale (FLL) may offer the best price but fewer amenities. CTA: View fare comparisons across carriers for October travel and book the option that matches your budget and comfort needs.