In 2026, direct connectivity between the United States and Spain is at an all-time high, primarily served by Iberia, American Airlines, United, and Delta. The major "gateways" include New York (JFK and EWR), which offers multiple daily flights to both Madrid (MAD) and Barcelona (BCN). Other east coast hubs with direct service include Boston (BOS), Philadelphia (PHL), Washington D.C. (IAD), and Miami (MIA)—the latter being a massive hub for Iberia's Latin-link flights. Moving inland, Chicago (ORD) and Atlanta (ATL) provide consistent year-round service to Madrid. For West Coast travelers, Los Angeles (LAX) and San Francisco (SFO) offer direct routes to Barcelona and Madrid, though these are often "seasonal" or operated on a 3-to-4-times-per-week schedule. In 2026, some "secondary" markets like Dallas (DFW) and even Charlotte (CLT) have seen occasional direct links to Spain to cater to the growing demand for "open-jaw" European tours. Always check the seasonal schedules, as many airlines significantly increase their frequency to Spanish beach destinations during the peak summer months of June through August.