There's a particular pleasure in tracing the arc from South Florida's heat to the Gothic spires of Central Europe, and booking business class from Miami to Prague means making a strategic choice about how you connect — because no carrier flies this pairing nonstop. Both Delta and United serve this route through their respective transatlantic hubs, and the experience diverges meaningfully at that junction. Delta routes through Atlanta (ATL) or New York-JFK, where its Polaris-adjacent Delta One product on widebody transatlantic aircraft offers a solid lie-flat seat, while United connects through Newark (EWR) or Washington Dulles (IAD), deploying its Polaris business class cabin — a genuinely competitive hard product featuring direct-aisle access and deep recline on Boeing 767 and 777 configurations depending on the metal assigned to your Prague leg. The factual baseline worth knowing: United's Polaris on the Newark-Prague service has historically operated on Boeing 767-300ER aircraft, so confirming your specific equipment at booking is essential rather than assumed.
The seasonal rhythm on this corridor rewards the patient planner. April through September represents the sweet spot for both travel weather in Bohemia and fare availability, with shoulder months like April and September occasionally surfacing the most compelling redemption windows before peak summer compression sets in. From Miami International, both carriers depart from Concourse D or the main terminal complex — allow generous connection time regardless of which hub you're transiting, as MIA's international check-in queues during summer mornings can erode your buffer faster than expected.
The insider move most travelers overlook: when booking United Polaris on this route, filter specifically for 767-300ER equipment on the transatlantic segment rather than accepting any widebody assignment, as the seat configurations vary and the 1-2-1 layout on certain aircraft gives you that coveted solo window position that makes a ten-hour flight feel genuinely restorative. Given how frequently equipment swaps occur on European routes, setting automated fare and schedule alerts through a dedicated monitoring platform is the smartest way to catch both price drops and aircraft upgrades before your travel window closes.