Oakland's Algarve-bound travelers face a hard truth: there's no nonstop covering this roughly 10.5-hour journey, so booking business class from Oakland to Faro really means choosing the right connection strategy. My preferred routing runs Delta metal to Amsterdam or via a transatlantic partner into London, then a quick hop down to Faro—though the more elegant play, and the one I've used most often, is connecting through Lisbon on TAP Air Portugal, whose A330neo business class cabin offers lie-flat seats and genuinely good Portuguese wine service before the short domestic-feeling final leg. British Airways is the other strong option, routing through London Heathrow with their Club Suite on the long-haul segment—a proper door-equipped suite on the 777 and A350 fleet—before switching to a narrowbody Club Europe seat down to Faro, which is fine given the short duration.
Having flown this combination repeatedly, my strong recommendation is the TAP connection through Lisbon rather than backtracking through London: it's shorter, avoids Heathrow's notorious security queues, and TAP's business class lounge in Lisbon (T1) is a relaxed, underrated spot to decompress before the Algarve descent. If you route via London instead, build in at least 90 minutes for the T5-to-T3 or terminal transfer logistics, since BA's short-haul Faro flights don't always depart from the same terminal as long-haul arrivals. Faro's own airport is tiny and charmingly low-stress on arrival—no lounge worth mentioning, but immigration moves fast outside peak Saturday changeover days in July and August.
April, May, September, and October are the sweet spot for this route, both for Algarve weather and for business class availability, since summer sees Faro absorb heavy European leisure traffic that squeezes premium seats on connecting flights. My insider tip: TAP frequently releases extra business award and discount inventory on the Lisbon-Faro segment about three weeks out, once they finalize summer charter schedules—so it pays to recheck fares even after your long-haul segment is booked. Given how fare-sensitive this multi-carrier itinerary is, setting up automated price tracking on the Oakland-Faro corridor is the smartest way to catch these shifts before they close.