What an operator needs before it can sell a charter seat
A charter flight looks like a simple transaction from the outside. A passenger calls, a price is quoted, a seat is sold. Behind that price sit certificates that neither the passenger nor, often, the person selling the seat can name. Before an operator can advertise a charter flight and take money for it, it has to hold operating authority that the Federal Aviation Administration has issued and that the operator can point to by part number.
The rule that decides who may sell a charter is not a marketing rule. It is a certification rule, and the FAA keeps the map of it in one place: the air carrier and air agency certification pages.
- Operations and upkeep
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- By the Hangar Ledger editorial team
- contact@proaerobusiness.com
01 What separates a charter flight from a private one
In the United States, an aircraft owner may fly for personal reasons without asking anyone's permission to carry passengers. The moment those passengers pay, the flight changes category. The operator is now holding out to the public, and holding out is what brings an operation under air carrier rules. The FAA certification pages list the parts that govern this, and each part answers a different kind of operation.
A Part 135 certificate covers air carriers and commercial operators flying on demand, the model most people picture when they book a charter. A Part 121 certificate covers larger scheduled air carriers. Part 125 applies to certain large aircraft operations. Part 91 subpart K handles fractional ownership programs. Each of those is a separate application with its own requirements, and an operator holds the one that matches the flying it actually does. The structure of a Part 135 operator is set out on its own page, because the on demand model is where the question of who may sell a seat comes up most often.
Authorization
- Issued by
- Federal Aviation Administration
- Applies to
- Operating certificate under Part 135, 121 or 125
02 What the FAA changed in January 2024
Certification is not a single inspection. The FAA Flight Standards Service announced a change to how it processes applications, effective January 24, 2024. The new process combines elements of the certification process with a specific aim: to increase applicant readiness before the initial certification begins. The FAA states that this is a continuation of work to reduce certification wait times and improve application processing times, and it points readers to FAA Notice 8900.766 for the detail.
Readiness is the operative word. The change is aimed at applicants for an air carrier certificate, an air operator certificate, an air agency certificate, or the issuance of management specifications under 14 CFR parts 91K, 125, 133, 135, 137, 141, 142, 145 (Domestic) and 147. An applicant who arrives unprepared consumes the same calendar as one who arrives ready, and the FAA has decided to spend its effort on the second kind.
03 Which certificate fits which operation
The list of certification pages reads like a directory of aviation businesses, and that is exactly what it is. Part 121 air carrier certification sits at the top. Part 135 air carrier and operator certification is the on demand charter route. Part 133 covers rotorcraft external load operations, the helicopters lifting cargo on a line. Part 137 covers agricultural aircraft operations. Part 141 pilot schools and Part 142 training centers are the training side, and Part 145 repair station certification and Part 147 aviation maintenance technician school certification cover the maintenance and teaching of maintenance.
Part 91K sits between them as a program approval process rather than a certificate in the same sense: fractional ownership arrangements where several owners share aircraft and a management company runs the flying. The FAA lists it alongside the others because the paperwork and the oversight follow the same logic. The Air Carrier and Air Agency Certification page gathers all of these links in one index, and a reader who wants to know what a specific operator had to obtain can work backward from the part number.
04 What an operator has to show before advertising
Yes, and the proof is the certificate itself. An operator advertising charter flights is representing that it holds operating authority. Selling a seat on a flight that is not conducted under the correct certificate is not a small administrative slip; it changes what the flight is and what rules apply to it. The certificate is the document that answers the question a passenger would never think to ask.
The FAA does not publish the text of each part on the certification index. What it publishes is the application process and the links to each part, including the Airline Certificate Information page, which is where the agency records certificate data. That page does not give a reader the fare, the reputation, or the safety history of a specific operator. It gives the certificate, which is the starting point.
05 When a flight is sold before the certificate exists
An applicant who is mid certification cannot lawfully hold out as a certificated operator. This is why the January 2024 process change matters beyond the FAA's internal workload: the point of increasing applicant readiness is to shorten the gap between the decision to start an operation and the authority to conduct it. During that gap, the aircraft may exist, the pilots may be hired, and the insurance may be in place, and the operator still cannot sell the flight.
The FAA notes that use of the SAS External Portal for initial certification is voluntary for parts 121, 135 and 145 applicants. The agency offers free training for certificate holders and applicants, an overview document answering what SAS is, and a portal information guide. None of that substitutes for the certificate; the portal is the channel through which the application moves.
06 What the passenger never sees
By the time a charter passenger steps onto an aircraft, every certificate in the chain has already been checked by someone whose job depends on the answer. The pilot's certificate, the operator's operating certificate, the repair station that signed the last maintenance entry. The aircraft itself is served between flights on the ground, and the work an FBO does between two flights runs under an agreement the operator holds with the airport. The passenger experiences a flight. The regulator experiences a set of documents that have to line up.
That is the structure the FAA certification index makes visible. It is not an endorsement of any operator, and it is not a price comparison. It is a list of the doors an operator has to pass through on the way to being allowed to sell a seat.
07 A limit worth naming
The certification pages do not tell a reader whether a particular operator is currently in good standing, how long an application takes on a given day, or what a given operator charges. The Airline Certificate Information link is the closest the agency comes to a public record of who holds what, and the agency lists the application steps for each part without promising a timeline. An operator that wants to advertise and sell charter flights needs the certificate first, and the FAA index is where the application that produces it begins.
Where the public record stops, this page says so rather than filling the gap.
- What this page does
- It describes the structure of the work and names the agency that holds the rule behind it.
- What this page does not do
- It does not reproduce the current text of a federal regulation, and it does not rank schools, operators or suppliers.
- Where the rule itself lives
- www.faa.gov/
licenses_certificates/ airline_certification
08 Where to continue
The pages below take what an operator needs before it can sell a charter seat a step further inside operations and upkeep, beginning with How an aircraft part stays traceable from the shop to the airframe, then move on to the next trade. Each one names the agency that holds the rule it describes.