Madeira's rugged cliffside runway isn't a place most transatlantic travelers think to fly business class into, yet routing through Europe makes it entirely feasible—and increasingly rewarding for those willing to plan around a connection. There is no nonstop option for business class from San Francisco to Funchal, so the real decision lies in choosing your gateway: London, Frankfurt, or Lisbon. British Airways runs SFO–LHR nonstop with its Club Suite, a fully enclosed suite with direct aisle access that's become one of the more consistent hard products in BA's fleet, before a short connection down to Funchal on a narrowbody. Lufthansa routes through Frankfurt, pairing its long-haul Boeing 747-8 or A350 business cabin (with select aircraft now featuring the new Allegris seat) with efficient onward connectivity into Madeira. TP Air Portugal, meanwhile, offers the most geographically logical path via Lisbon, its own hub, making it a favorite among those who want to minimize connection stress on the Madeira leg specifically.
My preference, after flying this corridor multiple times chasing off-peak fares, is the Lisbon routing on TAP whenever schedules align—arriving into Lisbon's Terminal 1 gives you a manageable buffer before the Funchal hop, and TAP's business class, while not class-leading, is comfortable enough for the shorter overall total journey. One insider tip: book the Frankfurt or London connection with at least a two-hour buffer during winter months, since Funchal's approach is notoriously wind-sensitive and diversions to Porto Santo aren't unheard of—something rarely mentioned in standard route guides.
January through March and October into November consistently produce the softest business class fares on this corridor, as Madeira's shoulder season sees less transatlantic leisure demand competing for premium seats. Given how much these fares fluctuate week to week across three very different carriers and connection points, setting up automated fare alerts is genuinely the smartest way to catch a favorable window before it closes.