N644NK

N644NK is an Airbus A320, a twin-engine jet operated by SPIRIT AIRLINES LLC. SkyMeter has tracked 2,786 flights totalling 6,052 hours of airtime via ADS-B across 790 callsigns. The most frequent segment is KLAS to KBUR. Service window in our records spans 366 days. Of those flights, 92 (3.3%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Airbus A320 has a 118 ft wingspan, a maximum takeoff weight of 171,961 lb. The Airbus A320 revolutionized commercial aviation when it entered service in 1988 as the world's first production airliner with full fly-by-wire flight controls and side-stick controllers instead of traditional yokes. Built by Airbus Industrie as the founding member of what became the best-selling jet airliner family in history, the A320 introduced a common type rating across its entire family—pilots certified on the A318, A319, A320, or A321 can fly any variant with minimal additional training, a concept that reshaped airline economics and crew scheduling worldwide. Its digital flight control system, which interprets pilot inputs through computers rather than direct mechanical linkage, provides envelope protection that prevents pilots from exceeding structural limits or stalling the aircraft under normal law, a design philosophy that sparked decades of debate about automation versus manual flying skills. The A320 typically cruises at Mach 0.78 and can reach altitudes up to 39,000 feet with a range of approximately 3,300 nautical miles, making it the workhorse of short- to medium-haul routes globally. Seating 150 to 180 passengers in typical two-class configurations, it competes directly with the Boeing 737 Next Generation and MAX families. The type's operational efficiency, commonality advantages, and advanced avionics helped Airbus break Boeing's dominance in the single-aisle market. SkyMeter has tracked flights across airframes and operators spanning routes, with the largest observed operator.