Four airlines cover this route well, each routing through a different gateway. American Airlines connects via Dallas or Charlotte and uses its Flagship Business cabin, a 1-2-1 lie-flat suite with Casper bedding and access to Flagship Lounges at the connecting hub. Air France routes through Paris CDG, putting travelers on a widebody with proper French service and lie-flat seats in 1-2-1 configuration, plus access to La Première lounge in Paris if there's a long layover. Lufthansa flies via Frankfurt with its newer Allegris Business suites — a meaningful upgrade over the airline's older business product, still 1-2-1 but with more privacy and the German carrier's typically tight operational reliability. Delta runs through Atlanta or Minneapolis with the Delta One Suite, which has a closing door for full privacy, Tumi amenity kits, and generally the most polished domestic-to-international connection experience for U.S. travelers starting from a secondary airport like Raleigh.