Rules & safety
Illegal charter: how brokers spot and avoid grey charter flights
Illegal charter flights are one of the fastest ways for a new broker to lose money, clients, and reputation. This page is for charter brokers arranging trips in the US, UK, EU, and Gulf who need to recognise grey charter before money moves.
By Limitless Sky · Last reviewed 2026-10-02 · 8 min read
Part of the private jet broker knowledge base.
Key takeaways
- Illegal charter flights are paid passenger transport without the operator holding the right certificate, aircraft listing, insurance, and traffic rights for that trip.
- Grey charter often hides behind dry leases, cost-sharing labels, or Part 91 flights sold like charter.
- If the operator lacks operational control on a certificated operation, your client may fly without valid cover.
- Brokers verify authority, aircraft on certificate, permits, and who holds operational control before quoting.
- When in doubt, decline the trip and use the reporting routes listed below — marked for owner verification.
What makes a charter flight illegal
A charter is illegal when passengers pay for air transport but the flight is not operated under the correct certificate, with the listed aircraft, valid insurance, and traffic rights. The label on the invoice does not decide legality — the operating facts do.
In the United States, paid passenger charter generally requires a Part 135 certificate holder in operational control, with the specific aircraft on that certificate. Flights conducted only under Part 91 private rules are not a substitute when the trip is really commercial charter.
In Europe and the UK, the operator normally needs an AOC and Operating Licence, with the aircraft on the AOC and the route permitted under traffic rules. A foreign operator serving UK points after Brexit typically needs a UK CAA foreign carrier permit — not automatic for EU holders.
The Air Charter Association describes grey charter as unlicensed charter, often involving private owners. EBAA and UK CAA materials stress that flights without proper authority are illegal regardless of how the contract is worded.
Operational control is the dividing line. If the person paying passengers is effectively buying a charter service — schedule, routing, and carriage — the flight usually must run under charter rules with a certificated operator in control.
Brokers who previously worked in commercial aviation often spot illegal offers quickly. Career changers should study Part 91 vs Part 135 differences before taking warm leads from social networks.
Common grey-charter schemes brokers see
Grey charter sellers reuse a small set of structures: disguise the sale as a lease, abuse cost-sharing rules, or use a certificated operator on paper while someone else runs the flight. Brokers learn to spot the pattern before requesting quotes.
- Sham dry leases: the client signs a lease, then the owner or a friend provides crew and handles everything. Operational control and who is really carrying passengers often do not match the paperwork.
- Cost-sharing abuse: true cost-sharing under applicable rules is narrow. Marketing a flight to the public, or charging above allowed shares, is not a private cost-share.
- Private operations sold for hire: an owner-pilot or corporate flight department flies paying guests without a charter certificate. The broker is told it is Part 91 or not commercial.
- Wrong aircraft or operator: quotes reference a certificated operator but the tail that flies is not on the certificate, or a different company holds operational control.
- Foreign operators without permits: EU or third-country operators pick up UK domestic or US cabotage-style work without the permits traffic law requires.
Example — not legal advice: A “lease” for a one-way New York to Miami with five passengers, fixed price, catering included, and the owner selecting crew is usually charter in substance even if the contract says lease.
Why illegal charter matters for brokers
Brokers are not the certificate holder, but they arrange the trip and often collect the fare. Illegal charter exposes the client, the broker’s brand, and any commission to insurance denial, regulatory attention, and chargebacks when the flight does not happen as promised.
Industry guidance from the ACA and EBAA stresses that illegal charters are typically not covered by standard insurance intended for licensed charter. If there is an accident or injury, policies may decline, leaving passengers and brokers in litigation.
Under US Part 295, unfair practices include arranging air transportation the broker knows cannot be performed legally, and misrepresenting who operates the flight. A broker who ignores obvious red flags takes on reputational and commercial risk even when criminal liability is unlikely.
Clients trust brokers to know the difference between a legitimate Part 135 quote and a grey offer from a social media group. One bad trip can end referrals from family offices and travel advisers.
Chargebacks and civil claims can follow when a flight is cancelled after regulators or insurers intervene. The broker who collected the fare is often the first call, even when an unknown owner-pilot actually flew.
ACA accreditation and EBAA membership are voluntary signals that a brokerage commits to industry standards. They do not replace your own legality checks on each tail.
How brokers check a flight is legal
Checking legality overlaps with charter operator due diligence: confirm certificate, aircraft on certificate, insurance, and who has operational control for this departure. Add trip-specific permit checks for international and UK work.
- Obtain the operating carrier’s legal name and any DBA before you present a firm quote to the client (Part 295.24 for US single-entity charter).
- Match the quoted tail number to the FAA Part 135 ops specs or the EASA/UK AOC aircraft list for the stated operator.
- Ask who holds operational control in writing for this flight, not only for the fleet in general.
- For UK segments, confirm foreign carrier permits where the operator is not UK-licensed.
- Review insurance: named insured, tail or fleet coverage, and whether charter (not private) use is covered.
- Reject “we will swap the operator later” unless the substitute is vetted the same way.
Keep emails or platform messages that show what you were told about certificate and tail. That record supports Part 295 relationship disclosures and internal disputes.
If you are offered illegal charter — and where to report
When checks fail, the professional response is to decline, tell the client why in plain language, and report credible cases to the relevant authority or industry body. Exact reporting URLs and forms change; verify each route before publishing client-facing instructions.
If you are offered one: do not broker the flight to earn a fee. Document what raised concern, notify your client if they heard the offer elsewhere, and use an accredited operator from your vetted network instead.
Reporting routes (confirm on the authority site before you file): US — FAA Hotline / Safe Air Charter contacts and local FSDOs; UK — CAA passenger guidance (making sure your flight is legal, report to iet@caa.co.uk); Europe — EBAA illegal-flight materials; UK industry — ACA grey-charter resources for members.
Reporting is not a substitute for your own vetting. Authorities prioritise cases with tail numbers, dates, and operator names.
Keep internal notes when you decline a grey offer so your team does not re-engage the same seller under a new company name later in the season.
Talking to clients about legality
Clients who found a cheaper offer often assume you are protecting margin. Explain certificate, insurance, and permits in one short paragraph, then offer a vetted alternative with a transparent quote.
Avoid lecturing. Show the missing document: no Part 135 listing, expired insurance, or no UK foreign carrier permit. Documents persuade faster than slogans.
If the client still wants the grey flight, document that you declined to arrange it. Do not introduce a third-party broker just to keep a fee.
FAQ
What is grey charter?
Grey charter is paid passenger air transport arranged without proper licensing or operational control, often dressed as a private flight or dry lease. It overlaps with illegal charter flights brokers must refuse.
Is Part 91 ever OK for paying passengers?
Part 91 covers private and certain non-common-carriage operations with strict limits. If the trip is sold like charter — fixed price to the public, broker markup, marketed seats — assume Part 135 or equivalent authority is required until counsel confirms otherwise.
Can a broker be liable for an illegal charter?
Brokers are not typically the certificate holder, but they can face contract claims, card chargebacks, Part 295 enforcement on US trips, and reputational harm. Insurance for the broker’s own business does not fix invalid operator cover.
How does illegal charter relate to wet and dry leases?
Legitimate leases transfer defined operational control and crew responsibilities. Grey schemes use lease language while the owner or broker still acts like a charter seller. See the glossary entries for wet lease and operational control.
Should I warn my client if they found a cheap grey quote?
Yes. Explain certificate, insurance, and permit gaps without fearmongering. Offer a vetted alternative with disclosures. Many clients do not know the difference until a broker explains it clearly.
Is a dry lease always illegal?
No. Legitimate dry leases exist and transfer defined operational control. The problem is sham leases sold as charter substitutes. If crew, schedule, and passenger carriage stay with the lessor in practice, treat it as charter until counsel confirms otherwise.