There's no nonstop path linking Norfolk and Belfast, so every itinerary in business class from Norfolk to Belfast runs through a major East Coast gateway before crossing the Atlantic — and the routing you choose matters more than the fare itself. Delta typically funnels ORF traffic through JFK or Boston, connecting onto transatlantic widebodies operating Delta One suites with sliding doors on the A330-900 or A350, both excellent for the eastbound overnight leg. American tends to route through Philadelphia or Charlotte, where its 777-200 or 787-9 Flagship Business seats offer reliable aisle access and decent bedding, while United favors Newark or Washington Dulles, deploying Polaris business on 767s and 777s with direct-aisle access on most configurations. None of these carriers fly nonstop into Belfast City or Belfast International from the US, so passengers connect a final time in London, Dublin, or occasionally Amsterdam before a short regional hop into BFS.
Having flown this corridor repeatedly, I've found the Boston-JFK-to-Europe connection via Delta the smoothest for ORF originators, since Boston's Terminal E minimizes the connection stress that Heathrow or JFK layovers can introduce later in the journey. If your routing lands you at Heathrow, build in real buffer time — Terminal 3 to Terminal 5 connections eat more time than posted minimums suggest, especially during the Belfast-bound afternoon bank of flights. An insider trick: booking the final domestic-style hop (London or Dublin to Belfast) as a separate short-haul segment on the same ticket often opens up better business-class award space than searching ORF-BFS as one continuous itinerary.
Deal-wise, January through March and again in October and November consistently produce the softest transatlantic business fares, as leisure demand drops and airlines discount premium cabins to fill widebodies before and after summer peak. Given the multi-carrier, multi-connection nature of this route, setting up automated fare alerts is the smartest way to catch these windows before they close.