There is no nonstop service connecting Honolulu and Madrid — every itinerary requires at least one mainland connection — and yet the journey rewards those who plan it thoughtfully. The most logical routing for business class from Honolulu to Madrid runs through the US mainland, with American Airlines and Iberia emerging as the natural partnership given their oneworld alliance and codeshare relationship across the Atlantic. American's Flagship Business product on its transatlantic widebodies offers direct-aisle-access seats with genuine lie-flat comfort, while Iberia's long-haul business cabin — particularly on the A350 operating Madrid routes — delivers a quietly refined Spanish sensibility: thoughtful catering, a generous flat bed, and that particular unhurried quality that makes a fourteen-hour total journey feel less punishing than the map suggests.
The strategic move most travelers overlook is positioning through Dallas-Fort Worth or Miami rather than defaulting to Los Angeles. DFW in particular offers American's Flagship Lounge — one of the more genuinely impressive domestic premium lounges in the network — giving you a proper decompression point between the Pacific crossing from Honolulu and the Atlantic leg ahead. If your preference leans toward Iberia metal for the transatlantic portion, connecting through Miami onto an IB codeshare keeps your itinerary on a single ticket and simplifies irregular operations recovery considerably. Delta's presence on this routing, via its partnership channels, can occasionally surface competitive premium availability, particularly when positioning through Atlanta or JFK onto partner metal bound for Barajas.
Seasonally, the window between January and March — and again in October and November — tends to produce the most accessible premium fares on this corridor, as leisure demand softens and airlines quietly release inventory that disappears the moment spring arrives. Madrid's Terminal 4, Iberia's purpose-built home, is worth arriving early to appreciate, especially before a long return. Given how quickly award and revenue availability shifts on a routing this complex, setting automated fare alerts for this specific city pair is less a convenience than a genuine competitive advantage.
