Seville rarely gets the business class attention it deserves, overshadowed by Madrid and Barcelona on most itineraries out of the American West. But for travelers chasing Andalusian architecture and sherry country without the crowds, business class from Salt Lake City to Seville is entirely achievable — it just requires a smart connection, since no carrier flies this pairing nonstop. The practical answer: American Airlines, British Airways, and Iberia jointly cover this corridor via their transatlantic joint business, typically routing through Dallas-Fort Worth, Chicago, or Philadelphia to reach London Heathrow or Madrid, then a short regional hop into Seville. I've routed this trip a dozen different ways over the years, and the Madrid connection via Iberia consistently proves smoother than funneling through Heathrow's T5, especially given Iberia's Madrid hub was built for exactly this kind of onward domestic-Spain connectivity.
For the long transatlantic leg, your seat matters more than your layover city. American's Flagship Suite (on 777-300ER or 787-9 aircraft) offers a fully enclosed suite with sliding door on select Dallas or Chicago departures, while British Airways' Club Suite — now rolling out fleet-wide on their 787s and A350s — gives similar privacy with excellent direct-aisle access from every seat. Iberia's A350 business class, refreshed in recent years, is a comfortable if slightly less private option, but it wins on convenience for the Seville leg since same-carrier connections in Madrid mean checked bags and boarding passes flow through without friction. My insider tip: build in a 3+ hour connection in Madrid rather than the minimum, since Iberia's short-haul gates for Seville are often a substantial walk from the international arrivals area, and Barajas security requeuing can eat time unexpectedly.
Seasonality favors the deliberate traveler here. April, May, September, and October consistently produce the best business class availability and value, aligning with Seville's shoulder-season weather — you avoid both the brutal summer heat and winter's thinner schedules. Because award and premium cash fares on this routing fluctuate significantly with joint-venture pricing changes, I'd strongly recommend setting up fare alerts rather than checking manually, so you catch the inevitable dips before they disappear.
