There's no nonstop path linking coastal Virginia to England's second city, which is precisely why the routing decision matters more than usual: business class from Norfolk to Birmingham always involves a connection, typically through Atlanta with Delta, Charlotte or Philadelphia with American, or Newark/Washington Dulles with United, before the transatlantic hop lands you into Birmingham's compact, easy-to-navigate terminal. Delta's one-stop options frequently route through JFK or Atlanta onto Delta One suites on widebody aircraft, giving you a fully lie-flat, direct-aisle-access seat for the long leg across the Atlantic, while American typically connects via Philadelphia or Charlotte onto its Flagship Business cabin, and United funnels through Newark or Washington Dulles into Polaris business class, complete with the Saks Fifth Avenue-designed bedding that's become a genuine differentiator on this itinerary.
Having flown all three carriers on this general corridor repeatedly, my strong preference is Delta One via Atlanta when the aircraft is one of their reconfigured widebodies—the suite doors and quiet cabin make the domestic-to-international connection feel seamless rather than punishing. If you're routing through a US hub, build in at least 90 minutes for the connection even with Global Entry, since Atlanta and Newark security lines swell unpredictably during late afternoon banks. One trick seasoned travelers use: check whether your connecting flight from Norfolk can be ticketed as a single itinerary with checked bags through to Birmingham, because separate tickets risk missed connections with no airline recourse, and Norfolk's limited flight frequency means misconnects can cost you a full day.
January through March and again in October and November consistently offer the softest business class fares on this corridor, as the shoulder seasons avoid both summer leisure demand and the December holiday crunch. Award space in Polaris and Delta One tends to open up roughly three to four weeks out during these windows, so setting fare and award alerts rather than manually checking fares will save you both money and frustration on a route this dependent on connection timing.