There's no nonstop path linking Louis Armstrong Airport to the Balkans, which is precisely what makes routing strategy the deciding factor for anyone booking business class from New Orleans to Skopje. The most reliable itineraries funnel through Atlanta on Delta before crossing the Atlantic on a widebody, or route via Frankfurt or Munich on Lufthansa, with a final connection continuing onward to Skopje via a partner or codeshare hop through Vienna or Istanbul. Turkish Airlines offers a compelling alternative for those willing to connect twice: MSY to Istanbul via a US gateway, then a short intra-European leg down to Skopje on Turkish's regional metal. As a factual baseline, expect total journey times in the 15-18 hour range once you account for connections, even though the core long-haul segment runs roughly 10.5 hours.
Having flown all three carriers on this general corridor repeatedly, my preference leans toward Lufthansa's Frankfurt hub for the layover experience — the Lufthansa First Class Terminal isn't accessible on a business ticket, but their business lounges in Concourse A are consistently excellent for a mid-journey reset, and Frankfurt's connection times to Southeast European cities are generous but not wasteful. Delta's transatlantic business product, Delta One, varies by aircraft, so if you're booking through Atlanta, check whether your long-haul leg operates on an A350 or 767 configuration before locking in seat selection, since the suite privacy differs meaningfully between the two. Turkish Airlines' Istanbul hub, meanwhile, rewards early arrivals — their business lounge with its indoor putting green and live cooking stations is worth building extra buffer time around, and IST's connections into the Balkans run frequently enough that a same-day continuation to Skopje is realistic even with a late-arriving transatlantic flight.
My insider tip: book the New Orleans to Skopje business class routing through Istanbul during Turkish's shoulder-season schedule adjustments in October and November, when award and revenue inventory both loosen up ahead of winter. January through March similarly sees softer demand into the Balkans. Given how much these fares fluctuate by routing and season, setting up automated fare alerts is the smartest way to catch a favorable window before it closes.