The commercial aircraft maintenance, repair, and overhaul market is estimated at about $100.99 billion in 2026, according to market research from Mordor Intelligence. The sector is projected to expand to roughly $128.12 billion by 2034, a compound annual growth rate near 4.5 percent.

Engine work dominates the spending mix. Engine overhaul captured 46.12 percent of MRO revenue in 2025, a reflection of the complexity and cost of modern powerplants. Operators have extended the service lives of existing aircraft, which keeps heavy checks and engine shop visits as the largest categories of maintenance outlay.

Growth is running ahead of capacity in key segments. Technician shortages and engine-shop bottlenecks have limited near-term expansion even as passenger traffic recovers and fleets log more flight hours. That mismatch supports firm pricing for maintenance slots and steady backlogs at major shops.

The data points to a market shaped less by new aircraft deliveries and more by the cost of keeping current fleets in service. With airlines holding onto airframes longer, demand for component repair, airframe heavy maintenance, and engine overhaul is set to rise steadily through the next decade, even as labor and supply chain limits cap how fast providers can grow.

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