The commercial aircraft MRO market is valued at roughly 101 billion dollars in 2026, with industry estimates clustering between 90 billion and 112 billion dollars depending on scope and methodology. The commercial segment stood near 96 billion dollars in 2025 and is forecast to expand at a compound annual rate of close to 5 percent through the end of the decade.

The valuation reflects steady structural growth across the maintenance sector rather than a short-term spike. Demand is supported by a larger active fleet, sustained passenger traffic, and the maintenance obligations that accompany both new and aging aircraft. As airlines defer some fleet renewal and keep older jets in service longer, the installed base requiring scheduled and unscheduled maintenance continues to widen.

Spending breaks down across several service lines, with engine work, component repair, line maintenance, airframe heavy checks, and modifications each claiming a share of the total. Engine overhaul commands the largest portion, consistent with the high cost and specialized tooling that turbine maintenance requires.

Geographically, North America and the Asia-Pacific region anchor much of the activity, the former tied to large legacy carriers and established repair networks, the latter to rapid fleet expansion. The combination of a growing fleet and a roughly 5 percent annual growth rate positions MRO as one of the more durable revenue streams in commercial aviation, drawing investment from airlines, independent providers, and original equipment manufacturers building aftermarket businesses.

Source: Mordor Intelligence - https://www.mordorintelligence.com/industry-reports/global-aircraft-maintenance-repair-and-overhaul-market-industry