IndiGo, CFM Sign MoU for Record 1,000+ LEAP-1A Engines

‍FARNBOROUGH — IndiGo (6E) has signed a memorandum of understanding with CFM International for more than 1,000 LEAP-1A engines to power 510 Airbus A320neo-family aircraft, setting up what CFM says would be the largest single order ever placed for LEAP engines.

The agreement, announced at the Farnborough International Airshow, also includes support for IndiGo’s planned engine maintenance, repair, and overhaul facility, as well as a long-term material services agreement covering spare parts and fleet support. GE Aerospace, which co-owns CFM International with Safran Aircraft Engines, announced the deal in a July 20 release.

Willie Walsh, Chief Executive Officer Designate, IndiGo said, “As IndiGo embarks on its next phase of growth towards becoming a truly global airline, we are delighted to extend our long-standing partnership with CFM International for the engines powering future deliveries of our Airbus A320/321neo Family aircraft fleet. CFM has been a trusted partner in our growth journey since 2016, supporting a fleet that now exceeds 375 A320/321 Family aircraft. The LEAP engine's industry-leading proven reliability makes it the ideal choice to support our scale, operational resilience and sustainability ambitions. This partnership reinforces our commitment to providing safe, reliable and efficient travel across an ever-expanding network in India and around the world.”

Engines for IndiGo’s Next Growth Phase

The LEAP-1A engines will support future deliveries of IndiGo’s Airbus A320neo and A321neo-family aircraft, extending a CFM relationship that dates back to 2016, when the airline operated CFM56-5B-powered A320ceo-family aircraft.

IndiGo deepened that relationship in 2019 with a LEAP-1A order for its newer A320neo-family fleet. The latest MoU moves the partnership into a much larger phase, reflecting the airline’s continued expansion across India and international markets.

“As IndiGo embarks on its next phase of growth towards becoming a truly global airline, we are delighted to extend our long-standing partnership with CFM International,” Willie Walsh, IndiGo’s chief executive officer designate, said in the announcement.

GE Aerospace Chairman and CEO H. Lawrence Culp Jr. said LEAP engines are now delivering “up to twice the time on wing” in hot and harsh operating environments compared with when they entered service, while maintaining fuel efficiency and reliability.

MRO Becomes Part of the Order Story

IndiGo now operates more than 430 aircraft and approximately 2,200 daily flights, connecting more than 95 domestic and 45 international destinations. It carried more than 123 million customers in FY26, according to GE Aerospace.

At that scale, engine availability becomes a strategic issue. The MoU includes CFM support for IndiGo’s upcoming engine MRO facility and long-term material support, including spare parts, designed to support dispatch reliability and cost predictability.

That matters because narrowbody engine durability and shop-visit capacity have become one of the main constraints on airline growth worldwide. Airlines are not only buying engines; they are trying to secure maintenance pathways that keep aircraft flying.

India’s Strategic Weight for CFM

CFM says India is its third-largest market, with five Indian carriers operating more than 400 LEAP-powered aircraft and 2,000 engines on order. GE Aerospace cited its installed base, manufacturing in Pune, supplier network, and engineering presence in Bengaluru as part of its wider commitment to India.

Safran CEO Olivier Andriès said the MoU reflects the trust airlines place in the LEAP engine and said India remains strategically important to Safran’s long-term aerospace investment.

Safran inaugurated a 45,000-square-meter LEAP MRO center last year, with planned capacity of 300 LEAP shop visits per year and a next-generation test bench. CFM said it has delivered more than 10,000 LEAP engines to date and continues to upgrade the fleet with a high-pressure turbine durability kit and reverse bleed system to reduce maintenance burden.

Powering Narrowbodies

For IndiGo, the agreement supports a fleet plan built around scale, frequency, and network growth. The airline is already India’s largest carrier, but its orderbook is pushing it toward a larger role in international short- and medium-haul flying, including markets across Asia, the Middle East, and beyond.

For CFM, the MoU would lock in one of the world’s fastest-growing airline customers at a time when engine manufacturers are competing not only on fuel burn, but on durability, availability, and aftermarket support.

The biggest engine deals are no longer just about powering aircraft at delivery but about building the maintenance and parts system needed to keep very large narrowbody fleets in service for decades.