Wet Lease (ACMI): When It Outperforms Aircraft Ownership

Discover why ACMI wet leasing often provides superior operational flexibility and capital efficiency over outright purchase.

For many airlines, the decision between acquiring an aircraft and securing it via a wet lease (ACMI – Aircraft, Crew, Maintenance, Insurance) is a complex financial and operational calculus. While ownership provides asset control, the compelling advantages of ACMI often dictate its preference, particularly for strategic market entry or seasonal capacity augmentation.

How it works

A wet lease agreement entails the lessor providing an aircraft, complete with flight crew, cabin crew, maintenance support, and hull insurance, to the lessee. The lessee is typically responsible for fuel, landing fees, navigation charges, passenger liability insurance, and other operational expenses. This comprehensive bundling significantly reduces the lessee's operational burden and capital commitment, enabling rapid deployment and scalable capacity adjustment. Payment is typically on an hourly basis, providing clear cost predictability tied to utilisation.

Typical terms in 2026

ACMI wet lease terms are dynamic, influenced by aircraft type, demand, and lease duration. For a modern narrow-body aircraft, a typical short-term (3-12 month) wet lease might command hourly rates ranging from EUR 3,000-6,000, dependent on factors like aircraft age and configuration. Long-term wet leases (12-36 months) often see lower hourly rates due to increased commitment. Payment structures usually involve an upfront deposit (often 1-3 months of anticipated lease payments) and monthly or bi-weekly invoices based on flight hours. Residual value protection is inherent to the lessor's business model, mitigating depreciation risk for the lessee. For comparison:

|-----------------------|-------------------------|--------------------|-----------------------|

| Tenor (years) | 5-12 | 3-10 | 0.25-3 |

| LTV (for finance) | 70-90% | N/A | N/A |

Who it suits

ACMI wet leasing is particularly advantageous for airlines requiring immediate capacity for new route launches, seasonal demand spikes, or during periods of fleet maintenance or delivery delays. Start-up airlines can leverage ACMI to test markets without heavy capital expenditure. Furthermore, it offers a pragmatic solution for carriers expanding into new geographies where local crewing or maintenance certifications present hurdles. It is a strategic tool for managing risk and optimising fleet utilisation without impacting the balance sheet with substantial asset acquisitions.

Pitfalls to avoid

While offering significant benefits, operators must exercise due diligence. Scrutinise the lessor's operational history, safety record, and maintenance programmes. Clearly define performance metrics, cancellation clauses, and return conditions in the lease agreement. Currency fluctuations can impact profitability if not adequately hedged. Ensure the leased aircraft's configuration and regulatory compliance align perfectly with your operational requirements and target markets to avoid unexpected costs or operational disruptions.

How Mega Aviation helps

Mega Aviation provides unparalleled insights into the global aircraft leasing market. We advise clients on the optimal fleet strategies, meticulously analysing their operational profiles and financial objectives to determine whether wet lease, dry lease, or outright purchase represents the superior path. We leverage our extensive network to introduce clients to vetted lessors and financiers, ensuring access to competitive terms. Please note, Mega Aviation facilitates connections but does not act as a regulated financial adviser.