Eos AirlinesESS/ E0

Eos Airlines was a low-cost transatlantic carrier founded in 2004 and headquartered in New York, operating premium economy and business-class service on point-to-point routes between the United States and Europe. The airline focused on a unique business model offering lie-flat seats and high-quality amenities at lower fares than traditional full-service carriers, primarily serving routes from New York's JFK airport to destinations including London, Paris, and Berlin. Eos ceased operations in 2006 after struggling with fuel costs, competition from legacy carriers, and limited route network flexibility. Though short-lived, the airline was notable for pioneering the low-cost transatlantic business-class concept that would later influence other carriers' premium economy offerings on international routes.