Providence's little T.F. Green Airport doesn't hand you a direct path to the Costa Blanca, and frankly, that's fine by me — the connections are part of the strategy. There is no nonstop option for business class from Providence to Alicante; every itinerary routes through a hub, most sensibly Boston, JFK, Philadelphia, or London Heathrow via American Airlines, Iberia, or British Airways, all Oneworld partners that share lounges and coordinate schedules well. My preferred routing sends me PVD-JFK on American's regional metal, then onto Iberia's A330 or A350 business class to Madrid, with a quick hop down to Alicante — Iberia's newer A350 seats, with direct aisle access in every suite, are a meaningful upgrade over their aging A330 configuration, so if the booking engine gives you a choice, push for the A350 leg. Alternatively, routing through London on British Airways lets you sample the Club Suite, BA's door-equipped business seat now standard on 777s and select A350s, though Heathrow's T5 connections to Iberia at T3 require real buffer time — I never book less than two hours there.
The Boston-to-Madrid corridor tends to price more competitively than funneling through JFK, and Iberia's Madrid hub (Terminal 4S) is a genuinely pleasant place to transit, with the Iberia business lounge offering proper Spanish ham and decent Rioja rather than sad pre-packaged snacks. One insider tip: Alicante-bound connections from Madrid are often on regional aircraft with recliner-style "business" seats rather than long-haul flat beds, so mentally treat that final short hop as economy-plus and save your real relaxation for the transatlantic leg.
Seasonally, April, May, September, and October reward patience — shoulder season on this Spain-bound corridor sees noticeably softer business class fares than the July-August rush toward the Mediterranean, and I've watched award space open up on Iberia with surprising frequency in those windows. Given how thinly this route is served in premium cabins, setting up automated fare alerts is far smarter than manually checking; the sweet spots on PVD-ALC business class tend to appear briefly and reward those already watching.