KLM Royal Dutch Airlines, as the flag carrier of the Netherlands, operates an extensive network across the United States, primarily utilizing major international hubs that connect to its home base at Amsterdam Airport Schiphol (AMS). As of 2026, KLM serves nearly 15 to 18 US gateways. Key airports include New York (JFK), Los Angeles (LAX), Chicago (ORD), and San Francisco (SFO). Through its powerful "Transatlantic Joint Venture" with Delta Air Lines, KLM also has a massive presence in Delta's primary hubs, such as Atlanta (ATL), Minneapolis-St. Paul (MSP), Detroit (DTW), and Salt Lake City (SLC). Other major destinations include Washington-Dulles (IAD), Houston (IAH), Miami (MIA), Las Vegas (LAS), and Boston (BOS). For travelers in the Pacific Northwest, KLM also operates direct flights to Seattle (SEA) and Portland (PDX). Because KLM is a member of the SkyTeam alliance, passengers flying into these US airports can seamlessly connect to hundreds of domestic cities via Delta flights. This makes KLM one of the most accessible European airlines for American travelers, regardless of whether they live in a coastal mega-city or a mid-western hub.