Direct flights to Spain from the United States are primarily concentrated in major international hubs, with New York City (JFK and Newark) offering the most frequent connections to Madrid and Barcelona. Other key cities with non-stop service include Miami, Chicago, Dallas-Fort Worth, Atlanta, Boston, Washington D.C. (Dulles), and Los Angeles. As of 2026, the network has expanded further; for instance, United Airlines has launched a new direct link from Newark to Santiago de Compostela, and Delta Air Lines has increased its focus with a new Seattle to Barcelona route. While American Airlines and Iberia dominate the "hub-to-hub" traffic into Madrid, United serves a wider variety of secondary Spanish destinations like Palma de Mallorca, Tenerife, and Malaga on a seasonal or year-round basis. Travelers from other US cities typically connect through these major gateways to reach the Iberian Peninsula.