American Airlines: As the primary DFW hub carrier, American frequently offers multiple daily nonstop flights to Orlando International Airport (MCO) in October with consistent schedules and loyalty benefits for AAdvantage members. Delta and United: These carriers typically offer one-stop options via their hubs (Atlanta, Charlotte, Houston, or Chicago) that may save money but increase travel time. Low-cost carriers: Check nearby Dallas-based airports (Dallas Love Field/DAL) for low-cost alternatives and consider Frontier or Spirit on connecting itineraries—watch for extra fees for baggage and seat selection. For October travel, evaluate total trip cost including baggage, seat fees, and schedules; book the airline that best matches your priorities for price, nonstop convenience, or frequent-flyer benefits. CTA: Run a price comparison across carriers and include baggage fees to find the true lowest-cost October flight.