Kosovo's small but fiercely proud aviation footprint means there's no nonstop path from Music City, and honestly, that's not a bad thing once you understand how to route it well. Business class from Nashville to Pristina almost always means connecting through a major European gateway, with Delta routing you via Amsterdam or Paris, Lufthansa funneling through Frankfurt or Munich, and Turkish Airlines offering perhaps the most interesting angle via Istanbul, where the airline's own flights into Pristina run frequently given the sizable Kosovar diaspora community in Turkey. I've flown this corridor multiple times, and my preference leans toward Lufthansa's Frankfurt connection when their A340 or 747-8 long-haul business seats are in play, since the airline's staggered Business Class product on select aircraft offers direct aisle access that Delta's older domestic-configured planes on the transatlantic leg sometimes lack.
The real insider move is booking the Istanbul routing on Turkish Airlines specifically to experience their business class lounge at IST, arguably one of the most lavish in the world, with a mini-golf area and full brasserie — worth arranging a 3-4 hour layover rather than rushing the connection, since Pristina-bound flights from IST are typically narrow-body and short, making the ground experience the highlight rather than the final sector. Delta flyers should aim for Amsterdam connections when possible, as Schiphol's transfer process tends to be smoother than CDG's often-congested security lines, particularly if you're arriving from a long red-eye out of BNA and need a coherent layover rather than a sprint.
Seasonality matters more than people expect here: January through March and again in October and November tend to yield the most favorable business class availability, largely because Kosovo's diaspora travel surges around summer and the winter holidays, leaving shoulder-season inventory more open for point-hunters and revenue bookings alike. Given how thin and irregular premium cabin space can be on this route, I'd strongly recommend setting up fare and award alerts rather than checking manually — availability here shifts fast, and the difference between a mediocre routing and a genuinely excellent one often comes down to catching it within days of release.