Part 91

IN PRACTICE

Part 91 prohibits payment in exchange for transportation. A Part 91 flight that accepts compensation is operating as illegal charter unless it falls under one of the narrow exemptions (e.g. cost-sharing under Section 61.113, time-sharing or interchange agreements).

Why part 91 exists. Part 91 is part of the regulatory framework that distinguishes commercial air transport from private flying. The rules protect passengers by setting standards for crew training, maintenance, dispatch and insurance, and they protect the industry by giving every operator the same baseline to compete against.

Part 91 under FAA rules. In the United States, part 91 is enforced under Title 14 of the Code of Federal Regulations. Operators are audited periodically and must self-report deviations. As a broker we only quote operators whose part 91 compliance is current and verifiable.

Part 91 under EASA and UK CAA rules. In Europe, the EASA framework implements the same principles through national civil aviation authorities. Operators flying internationally must satisfy the rules of every state they operate to, which is one reason cross-border charter is more complex than a domestic trip.

How part 91 shows up on your quote. You won't usually see part 91 as a line item, but it shapes which operators can quote your trip, which aircraft they can offer, how many crew are required and what insurance limits apply. Quietly, part 91 is one of the main reasons two superficially similar quotes can differ by thousands of dollars.

Common questions about part 91. Search behaviour around part 91 clusters into a small number of intents: "what is a part 91 in private aviation", "part 91 meaning", "part 91 definition", "part 91 explained", "part 91 FAA rules", "part 91 EASA rules". 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 Part 91 appears in a charter quote. Whether part 91 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 part 91. We are a charter brokerage, not an operator, so our value is in the questions we ask before you ever see a quote. Part 91 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 part 91 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.