Split's compact airport and shimmering Dalmatian coastline reward those who plan their transatlantic routing with care, and the truth is there's no nonstop option for business class from Dallas to Split — every itinerary requires a connection through a major European gateway. American Airlines offers the most sensible pairing for DFW-based travelers, flying its Flagship Business cabin (on 777 or 787 aircraft equipped with fully lie-flat Cirrus or Super Diamond suites) across the Atlantic to hubs like London Heathrow or Philadelphia, then connecting onward to Split via partner Croatia Airlines (OU), whose short-haul business class is a comfortable if modest regional product—typically a blocked middle seat with enhanced service rather than a lie-flat seat. Delta, codesharing through Amsterdam or Paris with its Delta One suites (on A330-900 or A350 aircraft), is another strong option, particularly for travelers who prioritize a fully-enclosed suite with sliding door for the long-haul leg before downgrading comfort expectations on the intra-European hop.
Having routed through both Heathrow and Amsterdam multiple times en route to the Adriatic, I'd steer experienced travelers toward Amsterdam as the connecting hub of choice — Schiphol's efficient transfer process and Delta's dedicated business lounges make the layover far less taxing than Heathrow's often-congested Terminal 3 or 5 transfer corridors, especially after an 11.5-hour flight. One insider tip rarely mentioned: Croatia Airlines' Split arrivals are seasonal and thin outside summer, so shoulder-season connections in April, May, September, and October often mean tighter layover windows — build in at least two hours to avoid missing the final leg.
Split itself rewards the shoulder months handsomely, with warm Adriatic light, thinner crowds along the Riva, and noticeably better award and business class availability than the July-August crush. Because fares and premium award space on this DFW-Split corridor fluctuate with little warning — particularly on the Delta and American long-haul segments — setting up automated fare alerts is the smartest way to catch a business class deal before it disappears.