United Airlines will operate nonstop year-round flights to Cartagena, Colombia (CTG) from Houston Intercontinental (IAH) and Washington Dulles (IAD), launching 17 December 2026. The carrier becomes the first U.S. airline offering nonstop service from both hubs to CTG, joining JetBlue, Delta, and American as the fourth U.S. operator there. Two Boeing 737 routes fly four times weekly (Tues, Thurs, Sat, Sun), connecting Cartagena to over 70 U.S. destinations via United’s hubs. This expansion marks Cartagena as United’s third Colombian destination after Bogotá and Medellín. One-way economy fares start at $664 from Washington and $824 from Houston; business class begins at $848 and $1,200 respectively. Service requires government approval and schedules may change.