United Airlines pilots on at least two flights reported GPS interference near Los Angeles in the early hours of 25 September, with both aircraft continuing safely to their destinations. The flights involved were United 1962, an Airbus A321neo climbing out of Los Angeles International Airport for Chicago, and United 1866, a San Francisco to Dallas/Fort Worth service cruising near the Los Angeles area.
The incidents were relayed to air traffic control during climb and cruise, underscoring the resilience of redundant navigation systems on modern airliners. The reports came during a period covered by an FAA-published GPS test window centred on China Lake in Southern California, although no official source had linked the testing to the interference. The cause remained unidentified at the time of publication, and the available reporting did not establish any wider impact on other flights. GPS jamming and spoofing continue to draw scrutiny across busy U.S. airspace as operators manage brief satellite-navigation disruptions without losing normal control of aircraft.