Reno's high desert runway sees precious few long-haul widebodies, which is precisely why anyone booking business class from Reno to Hannover needs a clear-eyed strategy before touching a connection. There's no nonstop here, and there never will be — RNO simply doesn't have the transatlantic infrastructure — so the routing game is everything. The factual bottom line: business class from Reno to Hannover requires a domestic-to-international connection through a major US gateway, with Delta, American, or United hubs offering the most reliable one-stop or two-stop paths, and total journey time typically running close to 14-16 hours once you account for the connection, against roughly 11.5 hours of actual flight time.
Having routed this trip through all three major alliances, my preference leans toward Delta via JFK or Boston, where a switch to Delta One on the transatlantic long-haul segment gets you into a suite with a closing door — a meaningful upgrade over the domestic first class cabin you'll experience on the RNO segment itself. American routes well through Philadelphia or Charlotte, connecting into their Flagship Business cabin on 777s or A330s bound for Frankfurt or Munich, then a short intra-European hop to Hannover; United's path through Newark or Chicago into Polaris business is equally competitive, especially with their newer Polaris seats on 777-300ERs. My insider tip: skip Frankfurt as your final European connection if you can — Munich's shorter, more predictable connection times to regional airports like Hannover save real stress after a redeye, and Lufthansa Group's regional jets from MUC are consistently punctual in shoulder season.
January through March, and again in October and November, are your best windows for value, as Reno-to-Europe demand is thin outside ski season and summer, giving airlines room to release premium inventory. Given how fare classes on this three-airline route shift week to week depending on which US hub has open award or discounted business space, setting up automated fare alerts is the smartest move you can make before locking in dates.