Direct Answer
Commuter and on-demand are the two kinds of operation conducted under 14 CFR Part 135. A commuter operation is scheduled service flown to a published schedule, at least five round trips per week on at least one route, using rotorcraft or non-turbojet airplanes with nine passenger seats or fewer and 7,500 lb payload or less. An on-demand operation is essentially everything else for hire under Part 135 — the broad charter and air-taxi category, including public charter and negotiated-terms flights.
Both definitions live in 14 CFR §110.2. The split is not cosmetic: under §119.21 each category gets its own operations specifications, and the scheduled-versus-unscheduled character drives different crew flight-time and rest rules (§135.265 for scheduled, §135.267 and §135.269 for unscheduled on-demand crews).
This is a regulatory characterization, not a documentation one. Which category applies to a specific operation — and which duty and rest rule governs it — is a determination for your FAA Flight Standards office and an aviation attorney. FileFlo does not make that call; it does the records work each category requires.
One Certificate, Two Kinds of Operation
A lot of operators think of “Part 135” as a single regime — you get the certificate, you fly charter, done. But the regulation actually carves Part 135 into two kinds of operation, and the one you conduct is written into your authorization. The distinction is easy to miss because the overwhelming majority of Part 135 work is on-demand charter, so “Part 135” and “on-demand” get used almost interchangeably. They are not the same thing: commuter is a specific, narrower category that sits alongside on-demand under the same Part 135 rulebook.
This is a different question from the one most people start with — the difference between the operating parts themselves (Part 91 vs Part 121 vs Part 135). If you are trying to work out whether you are even in Part 135 versus Part 91 (private) or Part 121 (the airlines), start with Part 91 vs Part 121 vs Part 135. This guide assumes you have already landed inside Part 135 and asks the next question: within it, are you commuter or on-demand?
The line is drawn by the definitions in 14 CFR §110.2, which sits in Part 110 (the definitions and applicability shared across Parts 119, 121, and 135). Two features do the work: is the service scheduled to a published timetable at the commuter frequency, and does it fit the small, non-turbojet aircraft profile. Get either “no” and you are almost certainly on-demand.
This is a regulatory question — confirm it with the FAA and counsel
The commuter-versus-on-demand classification is part of your operations specifications and carries real consequences for the rules you must follow. Nothing here is legal advice, and the application of the §110.2 thresholds to a particular route structure can be subtle. Get your classification confirmed by your FAA principal operations inspector and, where it matters, a qualified aviation attorney. FileFlo is the records layer for operators who already know which category they hold; it does not classify your operation or render legal opinions.
The Two Definitions, Side by Side
Here is the regulatory language that actually controls, paraphrased closely from 14 CFR §110.2. Read them together — on-demand is written, in part, as “everything that is not commuter,” so the two definitions interlock.
Commuter operation
Any scheduled operation conducted with a frequency of at least five round trips per week on at least one route between two or more points according to the published flight schedules, using either (1) rotorcraft, or (2) airplanes or powered-lift that are not turbojet-powered, have a maximum passenger-seat configuration of nine seats or fewer (excluding each crewmember seat), and have a maximum payload capacity of 7,500 pounds or less.
On-demand operation
Any operation for compensation or hire conducted as a public charter under Part 380, or in which the departure time, departure location, and arrival location are specifically negotiated with the customer — including common-carriage passenger operations in airplanes or powered-lift (turbojets included) with 30 seats or fewer and 7,500 lb payload or less; noncommon/private carriage in aircraft with fewer than 20 seats and less than 6,000 lb payload; essentially any rotorcraft operation; scheduled passenger operations running fewer than five round trips per week on at least one route (nine seats or fewer, 7,500 lb payload or less); and all-cargo work at 7,500 lb or less.
The simple way to hold it
Ask two questions. (1) Is it scheduled to a published timetable at five-plus round trips a week on a route? and (2) Is the aircraft a non-turbojet of nine seats or fewer (or a rotorcraft)? Only if both are yes is it a commuter operation. Any “no” — negotiated charter, fewer than five round trips, a turbojet, more than nine seats — lands you in on-demand. On-demand is the default; commuter is the exception you have to qualify into.
“Scheduled” alone does not make you commuter
A common trap: an operator runs published scheduled service and assumes that makes it a commuter operation. Not necessarily. Scheduled passenger service that runs fewer than five round trips per week on its routes is expressly classified as on-demand in §110.2, not commuter. Frequency, not just the existence of a schedule, is what flips the switch — along with the non-turbojet, nine-seat aircraft profile. Separately, the §110.2 definition of a “scheduled operation” does not include passenger-carrying operations conducted as a public charter under Part 380.
One more boundary worth naming: these are categories inside Part 135. If a scheduled airplane operation grows past nine seats or moves into turbojets, it generally stops being a commuter operation and may cross out of Part 135 altogether into Part 121 (the domestic/flag air-carrier regime). For that outer boundary — and the seat and payload numbers that define it — see Part 91 vs Part 121 vs Part 135. This guide stays inside the Part 135 fence.
Commuter Operations — Scheduled & Frequent
Commuter is the smaller, more specific of the two categories. Think of the regional turboprop carrier flying a published timetable between two or three cities several times a day, or a scheduled island-hopping operation — small, non-turbojet aircraft on a repeating, public schedule. The defining features in §110.2 are the published schedule, the five-round-trips-per-week-on-at-least-one-route frequency, and the aircraft profile: rotorcraft, or non-turbojet airplanes/powered-lift with nine seats or fewer and 7,500 lb payload or less.
A commuter operation, in checklist form
Because commuter service is scheduled, it carries its own flavor of crew flight-time and rest rules — the scheduled-operations rule at 14 CFR §135.265 rather than the unscheduled rules that govern on-demand crews. That makes the scheduled/unscheduled bookkeeping — whose limits apply to which crew on which flight — a live compliance issue, not a trivia question. For a deeper look at the scheduled-side limits, see Part 135 scheduled operations flight-time & rest.
Commuter authority is reflected in your operations specifications under §119.21, and the published schedules and route structure behind it are exactly the kind of documentation an inspector will expect to see line up with what you actually fly. The schedule is not just a marketing artifact — it is part of how your regulatory category is established.
On-Demand Operations — The Broad Charter Category
On-demand is where most of the Part 135 world lives. It is the charter and air-taxi category: flights where the departure time, departure location, and arrival location are specifically negotiated with the customer, or that are conducted as a public charter under Part 380. The bulk of business-jet charter, air-taxi, on-demand cargo, and most helicopter for-hire work is on-demand. Per §110.2, the category spans several aircraft and carriage types:
Common-carriage passenger charter
Airplanes or powered-lift, including turbojets, with a passenger-seat configuration of 30 seats or fewer (excluding crew) and a payload capacity of 7,500 pounds or less.
Noncommon / private carriage
Operations conducted with airplanes or powered-lift having fewer than 20 passenger seats and a payload capacity of less than 6,000 pounds.
Rotorcraft
Essentially any rotorcraft operation for compensation or hire conducted under Part 135.
Low-frequency scheduled passenger service
Scheduled passenger operations running fewer than five round trips per week on at least one route, in non-turbojet aircraft of nine seats or fewer and 7,500 lb payload or less — scheduled, but not at commuter frequency.
All-cargo work
All-cargo operations within the applicable payload limit (7,500 pounds or less).
On-demand can include turbojets and bigger cabins
Notice the asymmetry: commuter airplanes are capped at nine seats and must be non-turbojet, but on-demand common-carriage charter can use turbojets up to 30 seats (7,500 lb payload or less). That is why a light-jet or mid-size-jet charter is on-demand, not commuter — the aircraft alone disqualifies it from the commuter definition, regardless of how the trip is scheduled.
On-demand crews are governed by the unscheduled flight-time and rest rules — §135.267 for one- and two-pilot crews and §135.269 for three- and four-pilot crews — which are structured very differently from the scheduled rule. On-demand authority is reflected in on-demand operations specifications under §119.21. Many operators hold authorizations for both kinds of operation; the two simply describe different ways the same certificate gets used.
Commuter or on-demand — can you prove your authorization on demand?
FileFlo does not decide whether you are commuter or on-demand, and it does not negotiate your OpSpecs or give legal advice — that is your FAA Flight Standards office and your aviation attorney. What it does is the records work the classification drives: classifying, version-controlling, and tracking expirations on your OpSpecs, schedule documentation, manuals, and crew flight-time and rest records so they are audit-ready, not reconstructed under pressure. Starter at $89/mo, Professional at $299/mo. 5-day free trial, no credit card required.
What the Classification Actually Changes
The commuter-versus-on-demand label is not just nomenclature — it changes concrete obligations. Three areas stand out.
| Attribute | Commuter | On-Demand |
|---|---|---|
| Nature of service | Scheduled to a published timetable | Negotiated charter / public charter (mostly unscheduled) |
| Frequency trigger | ≥ 5 round trips/week on at least one route | No frequency requirement; includes scheduled service under 5 round trips/week |
| Aircraft (airplanes) | Non-turbojet, 9 seats or fewer, 7,500 lb payload or less | Up to 30 seats (turbojets allowed), 7,500 lb payload or less for common carriage |
| Rotorcraft | Permitted (if scheduled at commuter frequency) | Essentially any rotorcraft operation |
| Operations specifications (§119.21) | Issued for commuter operations | Issued for on-demand operations |
| Crew flight-time & rest rule | §135.265 (scheduled operations) | §135.267 / §135.269 (unscheduled crews) |
| Rules applying to both | §135.263 (all certificate holders); §135.273 (duty period) | §135.263 (all certificate holders); §135.273 (duty period) |
Values reflect the definitions in 14 CFR §110.2 and the operation-to-OpSpec mapping in §119.21, and the section titles of 14 CFR Part 135 Subpart F (§135.263, §135.265, §135.267, §135.269, §135.273). They are general orientation, not a substitute for a determination on your specific operation. Which flight-time and rest rule governs a given crew and flight is fact-specific.
1. Different operations specifications
Under §119.21, commuter and on-demand authority are issued as separate operations specifications. The kinds of operation you may conduct, your aircraft, and your routes or areas are spelled out there. If you fly both, your OpSpecs reflect both — and an inspector reads them as the controlling statement of what you are authorized to do.
2. Different crew flight-time and rest rules
Scheduled (commuter) operations follow §135.265; unscheduled (on-demand) crews follow §135.267 and §135.269. These rules are structured differently, so the same pilot can be subject to different limits depending on whether a leg is scheduled or on-demand. A few rules — §135.263 (all certificate holders) and the §135.273 duty-period rule — apply across both.
3. Different recordkeeping emphasis
Commuter service puts weight on published schedules and route documentation lining up with what you fly; on-demand puts weight on trip records and the flight-locating / flight-release paperwork for negotiated flights. Both demand current OpSpecs, manuals, and crew records — but the proof an inspector asks to see is shaped by the category.
To go deeper on the documents the distinction touches, see operations specifications (OpSpecs) explained and Part 380 public charter vs Part 135 — public charter is one of the negotiated/Part 380 pathways folded into the on-demand definition.
The Records Each Category Drives — and Where FileFlo Fits
Here is where the regulatory question hands off to a documentation one. Deciding whether you are commuter or on-demand belongs to your FAA Flight Standards office and your aviation attorney. But once it is settled, the classification quietly dictates which records you must keep current and be able to produce. A surveillance inspector does not take your word for your category — they read your OpSpecs and ask for the documents behind them. These are the record families that matter, and how FileFlo keeps them audit-ready.
OpSpecs & authorization documents
14 CFR §119.21Why it matters
Commuter and on-demand authority is issued as operations specifications. Each revision must be maintained, mirrored in the operating manual, and reflect the kinds of operation you actually conduct. The commuter-versus-on-demand classification itself lives here.
How FileFlo keeps it audit-ready
FileFlo version-tracks each OpSpecs revision with effective dates and links it to the manual excerpts and records that must stay in sync, so the current authorization is always identifiable.
Published-schedule & route documentation
14 CFR §110.2 (commuter)Why it matters
Commuter status turns on a published schedule flown at 5+ round trips per week on a route. The schedule and route documentation are part of how the category is established, and an inspector expects them to line up with what you fly.
How FileFlo keeps it audit-ready
FileFlo classifies and retains schedule and route documents with version history, keeping the record that supports your commuter authorization complete and retrievable.
Crew flight-time, duty & rest records
14 CFR §135.265 / §135.267 / §135.269 / §135.273Why it matters
Scheduled (commuter) crews follow §135.265; on-demand crews follow §135.267 and §135.269; the §135.273 duty-period rule and §135.263 apply across both. Proving the right limits were honored on the right flights is a core surveillance item.
How FileFlo keeps it audit-ready
FileFlo indexes and tracks crew flight-time, duty, and rest records, surfacing gaps and expirations before they become a finding — it stores the proof; it does not compute or certify your duty limits.
Operating manuals — kept current
14 CFR §135.21Why it matters
A Part 135 operator must prepare, keep current, and use a General Operations Manual that reflects its authorized operations. A stale or superseded manual — or one that does not match the OpSpecs category — is a finding.
How FileFlo keeps it audit-ready
FileFlo version-controls each manual revision with effective dates and a retained history, so the live version is always identifiable and superseded ones never get mistaken for current.
Related reading: What records a Part 135 operator must keep · Part 135 pilot records required by the FAA · Operations specifications (OpSpecs) explained · Part 135 scheduled operations flight-time & rest · How to prepare for a Part 135 surveillance audit
FileFlo is the records layer — not the FAA, not your counsel
To be unambiguous: FileFlo is a compliance document intelligence platform that classifies, indexes, version-controls, and tracks expirations on your compliance documents. It does not decide whether your operation is commuter or on-demand, issue or negotiate your operations specifications, compute or certify your crew duty limits, run your safety program, or provide legal, financial, or tax advice. Which category applies belongs to your FAA Flight Standards office and your aviation attorney. Once you know your classification, keeping the records that prove your compliance complete, current, and audit-ready is the document problem FileFlo solves. (FileFlo does not claim SOC 2 certification.)
Frequently Asked Questions
What is the difference between commuter and on-demand under Part 135?
Both are kinds of operation conducted under 14 CFR Part 135, but they are defined differently in 14 CFR 110.2. A commuter operation is a scheduled passenger operation flown to a published schedule with a frequency of at least five round trips per week on at least one route, using rotorcraft or non-turbojet airplanes (or powered-lift) with nine passenger seats or fewer and a payload capacity of 7,500 pounds or less. An on-demand operation is essentially everything else flown for compensation or hire under Part 135 — charter and air-taxi work where the departure time and location and the arrival location are specifically negotiated with the customer (or conducted as a public charter under Part 380), plus scheduled passenger service that runs fewer than five round trips per week. In short: commuter is the narrow, frequent, scheduled flavor; on-demand is the broad charter and air-taxi flavor. Which category a given operation falls into is a regulatory determination for your FAA Flight Standards office and aviation counsel — FileFlo keeps the OpSpecs, scheduling, and recordkeeping documents each category requires.
What is an on-demand operation under Part 135?
Under 14 CFR 110.2, an on-demand operation is any operation for compensation or hire that is conducted as a public charter under Part 380, or in which the departure time, departure location, and arrival location are specifically negotiated with the customer or the customer's representative — covering common-carriage passenger operations in airplanes or powered-lift (including turbojets) with 30 passenger seats or fewer and 7,500 pounds payload or less; noncommon or private carriage in aircraft with fewer than 20 seats and less than 6,000 pounds payload; essentially any rotorcraft operation; scheduled passenger operations that run fewer than five round trips per week on at least one route (with nine seats or fewer and 7,500 pounds payload or less); and all-cargo work at 7,500 pounds or less. That is the bulk of the charter and air-taxi industry. It is the broad default category of Part 135: if a for-hire flight under Part 135 is not a commuter operation, it is almost always on-demand.
What is a commuter operation under Part 135?
A commuter operation is defined in 14 CFR 110.2 as any scheduled operation conducted with a frequency of at least five round trips per week on at least one route between two or more points according to the published flight schedules, using one of two aircraft types: rotorcraft, or airplanes (or powered-lift) that are not turbojet-powered, have a maximum passenger-seat configuration of nine seats or fewer excluding each crewmember seat, and have a maximum payload capacity of 7,500 pounds or less. The defining features are the published schedule and the five-round-trips-per-week-on-one-route threshold combined with small, non-turbojet aircraft. Scheduled service that does not meet the five-round-trip frequency is not commuter — it falls into the on-demand category instead. Whether your route structure and schedule make you a commuter operator is a determination for your FAA Flight Standards office, not something a blog post or FileFlo decides.
Is Part 135 scheduled or unscheduled?
Part 135 contains both. The commuter category is scheduled service — flown to a published schedule at a defined frequency — while the on-demand category is fundamentally unscheduled charter and air-taxi work where the trip details are negotiated with the customer. The same regulatory distinction drives different flight-time and rest rules inside Part 135: 14 CFR 135.265 sets flight-time limitations and rest requirements for scheduled operations, while 14 CFR 135.267 and 14 CFR 135.269 set them for unscheduled (on-demand) one-and-two-pilot and three-and-four-pilot crews. So 'scheduled or unscheduled' is exactly the line between commuter and on-demand. A handful of rules — for example 14 CFR 135.263 (all certificate holders) and 14 CFR 135.273 (duty period) — apply across both. Confirm which duty and rest rule governs your specific operation with your operations leadership and FAA principal operations inspector.
How many round trips per week make an operation a commuter operation?
At least five round trips per week on at least one route between two or more points, flown according to a published flight schedule, with the qualifying aircraft (rotorcraft or non-turbojet airplanes or powered-lift, nine seats or fewer, 7,500 pounds payload or less). That five-round-trip threshold is the bright line in the 14 CFR 110.2 definition of commuter operation. If a scheduled passenger operation runs fewer than five round trips per week on its routes, 14 CFR 110.2 instead classifies it as an on-demand operation — even though it is technically scheduled. So a single route flown four round trips a week to a published schedule is on-demand for regulatory purposes, while the same route flown five round trips a week is commuter. The exact counting of round trips and routes against your published schedule is a determination for your FAA Flight Standards office; FileFlo keeps the OpSpecs and schedule documentation that prove which authorization you hold.
How many passenger seats can a commuter operation have under Part 135?
For the airplane (or powered-lift) flavor of commuter operations, 14 CFR 110.2 caps it at a maximum passenger-seat configuration of nine seats or fewer, excluding each crewmember seat, and the aircraft must be non-turbojet with a payload capacity of 7,500 pounds or less. Rotorcraft can also conduct commuter operations. That nine-seat, non-turbojet limit is much tighter than the on-demand ceiling: on-demand common-carriage passenger operations can use airplanes (including turbojets) with up to 30 passenger seats and 7,500 pounds payload or less. So a scheduled, frequent operation in a small turboprop is the classic commuter profile, while a charter in a light jet is on-demand. If a scheduled operation grows past nine seats or moves into turbojets, it generally is no longer a commuter operation and may cross out of Part 135 entirely into Part 121 — a determination for aviation counsel and your FAA Flight Standards office.
Do commuter and on-demand operations need different operations specifications?
Yes. Under 14 CFR 119.21, a person authorized to conduct commuter operations is issued operations specifications for commuter operations in accordance with the applicable Part 135 requirements, and a person authorized to conduct on-demand operations is issued operations specifications for on-demand operations. The kinds of operation you are authorized to conduct, the routes or areas, the aircraft, and the special authorizations all live in your OpSpecs, and the commuter-versus-on-demand classification is part of that authorization. An operator can hold authorizations spanning both. Your OpSpecs, the schedule documentation behind any commuter routes, and the manuals and records that mirror those authorizations are exactly the documents FileFlo keeps current and version-controlled — it does not issue, negotiate, or amend your OpSpecs, which is between you and your FAA principal operations inspector.
How does FileFlo help with commuter and on-demand Part 135 records?
FileFlo does not decide whether your operation is commuter or on-demand, negotiate your operations specifications, or interact with the FAA — those belong to your FAA Flight Standards office, your required management personnel, and your aviation attorney. What FileFlo does is the records work the classification drives: it is a compliance document intelligence platform that classifies, indexes, version-controls, and tracks expirations on the documents each category implies — your OpSpecs and authorization documents, the published-schedule and route documentation behind commuter authority, the General Operations Manual, and the crew flight-time, duty, and rest records governed by the different scheduled (135.265) and unscheduled (135.267 and 135.269) rules. Because the commuter-versus-on-demand line changes which rules and records apply, knowing your classification comes first — and that is a regulatory and legal call. Once you know it, proving you are compliant with current, organized, audit-ready records is the document problem FileFlo solves. FileFlo does not provide legal, financial, or tax advice and does not claim SOC 2 certification.
Know your category — then prove you operate within it
Whether you fly commuter, on-demand, or both, the day-to-day job of proving compliance is a records problem — and that is what FileFlo solves. It classifies, version-controls, and tracks expirations on your OpSpecs, schedule documentation, manuals, and crew flight-time and rest records so they are audit-ready on demand. AI document classification. 600+ document types. One-click FAA surveillance binder. Starter at $89/mo, Professional at $299/mo. No credit card required for the 5-day free trial. FileFlo does not classify your operation or give legal advice — it organizes and proves your compliance documents.
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Reviewed by Chad Griffith, Founder, FileFlo — compliance document intelligence. Last reviewed June 15, 2026. The commuter and on-demand definitions are verified against the Cornell Legal Information Institute’s text of 14 CFR §110.2; the operation-to-OpSpec mapping against 14 CFR §119.21; and the scheduled vs unscheduled crew flight-time and rest rules against the section titles of 14 CFR Part 135 Subpart F (§135.263, §135.265, §135.267, §135.269, §135.273). This article is a compliance-document perspective and is not legal, financial, or tax advice; whether a specific operation is commuter or on-demand, and which duty and rest rule governs it, are fact-specific determinations for a qualified aviation attorney and your FAA Flight Standards office. Enforcement and classification disputes are fact-specific — consult an aviation attorney.