Global aviation MRO spending reached $136 billion in 2025, up from $126 billion in 2024 and nearly double the level recorded in 2019, according to Oliver Wyman's Global Fleet and MRO Market Forecast. Spending is projected to approach $193 billion by the end of the decade, driven by aging fleets and a supply chain backlog that is keeping older aircraft in service longer than planned.

Engine MRO is the largest single segment of the market and the fastest-growing. The backlog in aircraft deliveries, combined with higher flight hours per aircraft, is intensifying demand for engine shop visits and component replacement. Large engine overhauls are subject to the longest wait times and the highest cost escalation.

Consumers are expected to face higher airfares as a result of elevated maintenance costs flowing through to airline operating budgets. Ticket price increases reflect both higher MRO costs and the broader supply and demand imbalance in commercial aviation.

For North American maintenance providers, the aging US fleet is a long-term revenue driver. North America is among the regions where MRO spending growth will outpace fleet growth through 2036. The global airline industry's net profit reached $39.5 billion in 2025, a 3.9% net margin, though North America's region showed flat growth due to air traffic control staffing shortages, labor unrest, and weather and technology disruptions.

Source: Oliver Wyman -- https://www.oliverwyman.com/our-expertise/insights/2026/feb/global-fleet-and-mro-market-forecast-2026-2036.html