COMMERCIAL · GLOSSARY

Wet Lease

Also known as: ACMI

A lease of an aircraft together with crew, maintenance and insurance — the foundation of how brokered charter flights are actually operated.

Other names for Wet Lease

In the private aviation industry, Wet Lease is also commonly referred to as ACMI. These terms are used interchangeably by operators, brokers and crews.

IN PRACTICE

When you book a charter through a broker, the operating contract is almost always a wet lease (ACMI) between the broker and the certified operator. The broker remains the commercial counterparty; the operator carries the aircraft on its Air Operator Certificate.

A dry lease, by contrast, transfers only the aircraft, with the lessee responsible for crew and operations. Dry leases in the US are tightly regulated to prevent illegal charter.

How wet lease fits into the private aviation market. Wet lease is one of several commercial structures clients use to access private lift. Each structure trades flexibility, price certainty and commitment differently, and the right answer depends on how many hours you fly a year, how far in advance you plan, and how much variability you can tolerate in aircraft type. Operators and brokers also call it ACMI, and the terms are used interchangeably on quotes, contracts and dispatch paperwork.

What you actually pay under a wet lease arrangement. Beyond the headline rate, look closely at fuel surcharges, peak-day calendars, taxi-time policies, repositioning rules, federal excise tax treatment and cancellation terms. Two wet lease programmes with identical sticker prices can differ by 20% or more once those clauses are normalised.

When wet lease beats on-demand charter — and when it doesn't. Wet lease usually wins on guaranteed availability and fixed hourly rates for repeat flyers. On-demand charter usually wins on aircraft choice, transparent per-trip pricing and zero capital commitment. We model both for every client before recommending a structure.

Questions to ask before signing a wet lease. Who holds the operating certificate? Which aircraft types are guaranteed? What happens if the contracted type isn't available? How are peak days defined? What is the refund policy on unused funds? A broker that won't answer those in writing is a broker to walk away from.

Common questions about wet lease. Search behaviour around wet lease clusters into a small number of intents: "what is a wet lease in private aviation", "wet lease meaning", "wet lease definition", "wet lease explained", "wet lease pricing private jet", "how does wet lease work". The Frequently asked section below answers each of those directly, and the related-terms list at the bottom of the page covers adjacent concepts you will run into in the same conversation.

How Wet Lease appears in a charter quote. Whether wet lease shows up as a price line, a regulatory note or a footnote on the contract, it is part of the chain of decisions that produced the number at the bottom of the quote. Our quote pages annotate the relevant items so you can trace each charge to the underlying cause — there are no opaque "service fees" hiding behind round numbers.

Why Limitless Sky cares about wet lease. We are a charter brokerage, not an operator, so our value is in the questions we ask before you ever see a quote. Wet lease is one of the things we screen for on every trip, alongside operator certificate, insurance limits, safety ratings, crew currency and aircraft maintenance status.

Where to go next. If you are researching wet lease for a specific trip, the fastest path is a live quote — we will surface every cost, regulation and operational consideration in writing before you commit. If you are still reading and comparing, the related terms and cross-links on this page connect to the most relevant guides, fleet pages and insight articles on the site.

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Frequently asked

What does Wet Lease mean in private aviation?

Also called ACMI. A lease of an aircraft together with crew, maintenance and insurance — the foundation of how brokered charter flights are actually operated.

How does wet lease work in practice?

When you book a charter through a broker, the operating contract is almost always a wet lease (ACMI) between the broker and the certified operator. The broker remains the commercial counterparty; the operator carries the aircraft on its Air Operator Certificate.

When is wet lease the right option for a charter client?

Wet lease fits flyers who match the usage pattern described above. For one-off trips, on-demand charter is usually more flexible; for recurring travel, structured products like jet cards or fractional programmes can be more predictable.

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RELATED TERMS

  • Charter BrokerAn intermediary that sources aircraft from certified operators on behalf of a client — nev
  • OperatorThe certified company that actually flies the aircraft under its own air operator certific
  • Air Operator Certificate (AOC)The European equivalent of a US Part 135 certificate, issued by EASA member-state authorit
  • Empty LegA repositioning flight an operator has to fly anyway with no passengers — typically offere
  • DeadheadIndustry slang for any flight segment operated with no revenue passengers, including posit
  • Ferry FlightA non-revenue positioning flight, often over long distances, to move an aircraft from one
  • Repositioning FeeThe charge applied when an aircraft must fly empty to or from a charter flight's actual de
  • Block HourThe unit of flight time used for pricing: from the moment the aircraft begins to taxi unti
  • Minimum DayThe minimum number of block hours an operator will charge per calendar day, regardless of
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