Madeira's volcanic runway has humbled many pilots, and there's something fitting about arriving on this dramatic outpost via a well-executed business class itinerary rather than a budget scramble through three connections. There's no nonstop option here — business class from Chicago to Funchal always routes through a European gateway, and after dozens of these journeys I can say the routing matters as much as the seat. TAP Air Portugal via Lisbon is the natural choice given Portugal's ownership of both endpoints, but British Airways through Heathrow and Lufthansa through Frankfurt or Munich both offer viable alternatives with stronger long-haul hard products on the transatlantic leg.
The real decision point is which carrier handles your ORD-to-Europe segment, since none of these airlines fly widebody metal on the short Lisbon-Funchal or equivalent hop — that final sector is typically a narrowbody regional jet with recliner-style business seating, so don't expect lie-flat comfort on the last leg regardless of carrier. For the transatlantic segment, Lufthansa's rollout of Allegris on select 787 and A350 routes from Chicago brings suites with sliding doors on newer configurations, while British Airways' Club Suite (also with direct aisle access and a door) flies consistently on its 787 and A350 fleet out of ORD. TAP's A330neo business class, while comfortable with a 1-2-1 layout, is the least premium of the three but pairs naturally with a same-carrier connection in Lisbon, simplifying baggage and rebooking if Madeira's notorious wind shear delays your final approach — something locals accept as routine but first-timers should be warned about, especially in winter.
My insider tip: build in a minimum three-hour connection in Lisbon if flying TAP, since Madeira-bound gates are often a long walk from the international arrivals area, and afternoon winds can cause holding patterns that eat into tight layovers. January through March and again in October and November consistently offer the softest fares on this corridor, as Madeira's shoulder season demand dips before Northern European snowbirds arrive. Given the routing complexity and fluctuating premium demand into Lisbon and Frankfurt, setting fare alerts for this specific city pair will save you from overpaying when award and revenue space tightens unexpectedly.