There is no nonstop path between North Carolina and the Balkans, which means booking business class from Raleigh to Pristina is really an exercise in choosing the right layover city rather than the right airline. After years of routing through Frankfurt, Munich, and Istanbul, I've concluded that Turkish Airlines via IST offers the most efficient onward connection to PRN, since Turkish operates the route with real frequency and their Istanbul hub sits geographically closer to Kosovo than the German gateways. That said, Lufthansa's Frankfurt or Munich connection remains the more comfortable long-haul experience for the transatlantic leg, particularly on aircraft fitted with the new Allegris business suites, which Lufthansa has been rolling out on select US routes including Charlotte and other East Coast departures feeding into RDU itineraries via codeshare.
My preferred routing pattern is Delta metal from RDU to Amsterdam or Paris (via its JV partners), then a switch to Lufthansa or a Star Alliance partner for the final push toward Southeastern Europe, landing on Turkish for the PRN leg given their consistent Pristina service. Turkish's business class on the 787 and A330 fleet still delivers a proper flatbed, real tableside service, and their Istanbul lounge — despite the airport's sprawl — remains one of the more indulgent business lounges in Europe, worth budgeting 90 minutes just to enjoy the live cooking stations before a tight connection. One insider tip: when connecting through Istanbul to PRN, request an aisle seat near the front on the Pristina leg, since Turkish often uses narrower regional configurations on that specific sector regardless of what's booked from the US.
Shoulder season — January through March and October into November — consistently yields the softest business class fares on this corridor, largely because Kosovo's tourism and diaspora travel peaks in summer. Given the routing complexity and the way award and revenue fares fluctuate week to week across three alliances, I'd strongly recommend setting up automated fare tracking for this specific city pair rather than checking manually, since the best Raleigh-to-Pristina business class fares tend to surface briefly before disappearing.