There's no nonstop way to get from Richmond to Poznan, which is precisely why routing strategy matters more on this itinerary than on almost any other transatlantic connection I book for clients. Business class from Richmond to Poznan realistically means funneling through one of three gateway strategies: Delta via Amsterdam or Paris-CDG, United via Newark or Washington Dulles into Frankfurt, or LOT Polish Airlines picking you up in a European hub for the final hop into Poznan's compact Ławica Airport. The flight time of roughly 9 hours only covers the long-haul segment; total journey time with connections typically runs 14-17 hours, so the seat you choose for the transatlantic leg matters enormously.
My strong preference on this routing is Delta's A330-900neo or A350 with the Delta One suite out of JFK or Boston (easily reached from RIC on a quick regional hop), which gives you a fully enclosed suite with a door for the long crossing — a meaningful upgrade over United's older Polaris cabins still flying on some Newark-Frankfurt rotations, though United has been retrofitting its 777 fleet with the newer Polaris seat and it's worth checking your specific aircraft before booking. LOT itself doesn't operate widebody business class product to the US, so your premium cabin experience will almost always be on the American or Star Alliance carrier for the transatlantic segment, with LOT or a partner handling the shorter European connector, often in a premium economy or business-lite regional configuration — don't expect lie-flat seating on that final short hop, and budget extra connection time in Frankfurt or Munich since LOT's schedule to Poznan can be tight.
One insider trick: flying into Berlin instead of connecting through a second European hub and taking LOT's Poznan feeder can sometimes save two hours of total travel time, since ground transport from Berlin to Poznan by train runs under three hours and avoids a second security screening. Given how thin premium inventory is on this city pair, setting up fare alerts for the January-March and October-November windows, when Delta and United both discount business fares into Central Europe, will do more for your wallet than any single booking trick.
