Bourbon country to Sicily's baroque coastline is not a journey you stumble into casually, and after years of piecing together this itinerary, I can say with confidence that there's no nonstop way to do it—every routing for business class from Louisville to Palermo requires at least one, often two, connections, with total flight time hovering around 10 hours in the air alone. The most reliable path I've found starts with Delta out of SDF, connecting through Atlanta or JFK, then transferring to a partner carrier like Air France-KLM or Lufthansa into a major European hub before the final hop to Palermo's compact Falcone-Borsellino airport. Lufthansa's Frankfurt or Munich connections work particularly well here, and if you can snag one of their newer Allegris business seats on the transatlantic leg, the direct-aisle-access suite makes the long first segment far more tolerable than the older staggered configurations still flying on some routes.
My preferred build, when schedules cooperate, routes through Rome via Alitalia's successor ITA Airways' partnership fares booked through Delta, landing you in Fiumicino where the connection to Palermo is a short, manageable regional hop rather than another long-haul slog. The insider move here: book the Rome-Palermo segment with enough buffer time to actually leave the terminal if you're transiting midday, because ITA's short-haul business product is essentially an empty middle seat with a meal, not worth rushing for—your real investment should go toward the transatlantic cabin. Fiumicino's Terminal 3 has reasonable business lounges if you end up with a longer layover, and I always recommend clearing security early since Rome's peak season crowds swell noticeably by mid-morning.
Shoulder season—April, May, September, and October—consistently delivers the best combination of award availability and fare value on this corridor, as Sicily's tourist crush eases and airlines loosen inventory on connecting partners. Because this itinerary depends so heavily on partner routing and shifting award space between Delta, Lufthansa, and ITA, I'd strongly encourage setting up automated fare alerts rather than manually checking—pricing and availability on this specific city pair moves quickly, and the difference between a good deal and a great one often comes down to catching the right week.
