The Airbus A320 taxied from the parking area to runway 25 at Monseñor Óscar Arnulfo Romero International Airport; the taxi-out required 3 minutes and covered less than 1 nm.

The aircraft departed runway 25, MSLP, with a takeoff roll of 1,167 m representing 37 % of the runway. Liftoff speed was 150 kt. Local weather reported a temperature of 18 °C, wind 2 kt from 270°, crosswind 1 kt and headwind 2 kt.

Climb commenced overhead the departure airport, climbing from 1,115 ft asl to 16,995 ft asl, an increase of 15,880 ft in 5 minutes while covering 22 nm.

Level cruise began 1 mile south of Ilopango and lasted 2 minutes, covering 8 nm.

A subsequent climb started 3 miles southwest of Tenancingo, climbing from 17,181 ft asl to 17,721 ft asl, an increase of 541 ft in 2 minutes and covering 8 nm.

Level cruise then began 5 miles northeast of Tenancingo and continued for 11 minutes, covering 57 nm.

Descent began 5 miles south of El Nispero, descending from 17,740 ft asl to 2,616 ft asl, a decrease of 15,123 ft in 14 minutes and covering 66 nm.

A further level cruise started 7 miles northeast of San Jose del Boquerón, lasting 3 minutes and covering 7 nm.

Final approach to runway 22 at Ramón Villeda Morales International Airport was from the northeast, on a heading of 220.0° at 4 nm and 1,266 ft agl.

Landing on runway 22, whose length is 2,609 m, occurred with a threshold speed slightly above target at 121 kt. Touchdown was 52 m beyond the touchdown zone, at 116 kt, with a touchdown rate of minus 203 fpm and a runway touchdown position misaligned by 8.2 m from centreline. Local weather reported a temperature of 27 °C, wind 9 kt from 89°, crosswind 7 kt and tailwind 6 kt. Total landing distance was 1,423 m, 55 % of the runway.

The aircraft rolled out on runway 22, maintaining alignment within 8.0 m of the centreline.

Overall, the flight covered 175 nm, taking 40, and used 1,901 kg of fuel.