Major carriers connecting James M. Cox Dayton International Airport (DAY) to Jacksonville International Airport (JAX) include American Airlines (frequent one-stop connections via Charlotte CLT), Delta Air Lines (via Atlanta ATL), and United Airlines (via Chicago ORD or Washington IAD). Low-cost or regional carriers may offer limited-season or indirect service. For November, compare checked baggage fees, change/cancellation policies, and on-time performance: American often provides abundant CLT connections, Delta offers strong ATL connectivity and SkyMiles benefits, and United connects well through ORD or IAD for cross-country itineraries. If cost is your priority, search for one-stop itineraries across all carriers; if convenience matters, prioritize nonstop (if available) or minimal-connection options and consider premium seats for extra flexibility. CTA: Run a multi-carrier search for DAY to JAX November travel to see real-time fares and policies.