Global commercial aircraft MRO demand reached $136 billion in 2025, up 8% from $126 billion the year before, according to Oliver Wyman's 26th annual Global Fleet and MRO Market Forecast. By the end of the decade, spending on aircraft maintenance, repair, and overhaul is projected to approach $193 billion.
The US aviation market faces particular challenges in this environment. North America is among the regions where maintenance spending is outpacing fleet growth because aircraft are older and require more intensive service. The average age of the global commercial fleet approached 13 years at the start of 2026, about a year and a half older than in 2024. Flight hours per aircraft rose 2% year-over-year, pushing utilization to new highs.
Production constraints are prolonging these conditions. At the start of 2026, roughly 17,000 unfilled aircraft orders were on the books globally. Both Airbus and Boeing have been unable to meet their production targets: Airbus produced 54 aircraft per month at end of 2025 against an ambition of 75, and Boeing's FAA-approved production rate for the 737 was 42 per month against a target of 57. The backlog is expected to take more than 12 years to clear at current rates.
Supply chain pressures include shortages of composites and titanium, which are tying up maintenance schedules alongside engine capacity constraints that represent the largest single segment of MRO demand.
Source: Oliver Wyman -- https://www.oliverwyman.com/our-expertise/insights/2026/feb/global-fleet-and-mro-market-forecast-2026-2036.html