In 2019, IndiGo selected LEAP-1A engines and signed a long-term service agreement for engines to power 280 A320neo family aircraft. This new agreement, therefore, secures the LEAP-1A engine and its long-term service agreements for a total of 590 IndiGo A320neo family aircraft.

The airline is currently operating seven A320neo and 15 A321neo with LEAP-1A engines. This agreement will secure LEAP-1A engines and service agreements for its A320neo family aircraft to be delivered from 2023 onwards.