The role ACMI plays in making air travel more sustainable

As the aviation industry addresses its responsibility for 2.5% of global carbon emissions, airlines are looking for ways of making operations more sustainable. Aircraft, Crew, Maintenance, and Insurance (ACMI) leasing is emerging as a key strategy, enabling airlines to scale operations while minimizing the long-term financial and environmental burdens that come with operating a large fleet. According to Martin Stulajter, CEO of AirExplore, Slovakia’s largest airline, the growing prevalence of this business model can help the industry reach its green goals.

Environmental advantages of ACMI leasing

Aircraft production is one of the most resource-intensive processes in aviation, with each new plane potentially generating up to 120,000 tons of CO₂ emissions. ACMI leasing maximizes the potential of each newly produced aircraft by enabling airlines to effectively share the same units for fixed periods depending on demand and season.

In other words, an aircraft leased to a European airline during summer’s peak travel season can be redeployed to Africa or South America during their high-demand periods. This approach ensures higher utilization rates, reduces idle time, and ultimately might lead to airlines purchasing fewer aircraft in the long run. Such operational efficiency can ultimately play a significant role in the industry’s road to net-zero emissions by 2050, as outlined in the Fly Net Zero commitment passed by IATA member airlines in 2021.

“In other sectors, the sharing economy is seen as one of the strongest drivers for reducing environmental impact. And the ACMI model is a perfect example of that, as it is in the best interest of both airlines and ACMI operators to ensure that each asset is used to its full potential,” Martin Stulajter, CEO of AirExplore, which belongs to Avia Solutions Group, the world largest ACMI provider, explains.

The importance of leading by example

Fuel efficiency is a critical part of any sustainability efforts an airline might undertake, and ACMI providers can grant access to the more efficient aircraft models, like the Boeing 737-800 Next Generation. This narrowbody jet, which forms the backbone of AirExplore’s passenger and cargo fleets, emits 10-15% less CO₂ than its predecessors and meets stringent noise abatement standards.

“By operating modern, fuel-efficient aircraft, we help our clients minimize their carbon footprint while meeting their passengers’ growing demands for travel and connectivity. In a market, where airlines are scrambling for capacity solutions, and major manufacturers have a backlog numbering over 8000 aircraft, on-demand access to best-in-class models is a major benefit ACMI providers can offer,” Stulajter shares.

With established expertise and operations spanning several continents, AirExplore can move its aircraft where demand is highest, avoiding regional overcapacity. Currently providing services in Europe and Africa, the airline is also preparing to expand into the United States, with the recently received approval from the Department of Transportation.

Operational benefits of ACMI leasing

Beyond sustainability, ACMI leasing offers airlines the flexibility to test new markets and routes with minimal risk. By deploying leased aircraft, airlines can evaluate demand without committing to permanent fleet expansions. This prevents overcapacity, reduces unnecessary flights, and lowers overall emissions.

AirExplore’s operations in Africa exemplify this approach. Supporting regional airlines in a market with annual growth rates of 7.4%—well above the global average of 6.1%—AirExplore provides efficient capacity solutions while minimizing environmental impact.

A sustainable future for aviation

As aviation moves toward decarbonization, ACMI leasing is poised to play a pivotal role in aligning growth with sustainability. The integration of sustainable aviation fuels (SAF), fleet modernization, and optimized operational strategies will further enhance ACMI’s environmental benefits.

“By optimizing fleet usage, reducing new aircraft production, and embracing modern technology, ACMI providers like AirExplore are setting a benchmark for responsible aviation practices. This model ensures that as the industry grows, it does so with minimal environmental impact, paving the way for a greener future in global air travel,” says Stulajter.