# How much of an aircraft cabin is premium?

URL: https://departcart.com/learn/premium-cabin-share
Published: 2026-08-30
Updated: 2026-08-30

See how premium cabin share changes by operator on the same aircraft type, using DepartCart's publishable cabin-layout corpus.

An aircraft code can look like a capacity assumption in a schedule or revenue
model. It identifies the airframe, but it does not identify how the operator
has divided the cabin inside it. The operating layout decides how many seats
belong to economy and how many sit outside it.

Among layouts that pass the publishability check and have at least 200 seats, the 260-layout sample has a premium share that runs from 0.0% to 48.4%, with a median of 14.7%. On the same Boeing 777-300ER, it runs from 6% at Qatar Airways to 48% at British Airways. Premium here combines first, business, and premium economy because it means every recorded seat outside economy.

**Caution:** **Methods note.** The published corpus contains 454 layouts, and all 454 carry a complete cabin mix whose cabin seats reconcile to the layout total. A recorded exit row is present on 157 layouts and a recorded bassinet row on 114. Of these three corpus dimensions, cabin mix is the only one with complete coverage. Premium share is non-economy seats divided by all seats, with first, business, and premium economy combined. Comparison endpoints are rounded to whole percentages. Point spreads are calculated from the unrounded shares and then rounded, so displayed endpoints do not always subtract to the displayed spread. Every layout in the calculation passes the same publishability check used by the linked seat-map pages.

## How much of a large aircraft cabin is premium inventory?

The premium cabin share sample after the publishability check contains 260 layouts at or above 200 seats. Its range is 0.0% to 48.4%, and the median is 14.7%. That spread is a property of the operating configurations in the corpus, not a fixed property of large aircraft.

**Insight:** The 0.0% floor is retained. On a zero-share layout, every recorded seat is assigned to an economy-family cabin, and those cabin seats reconcile to the layout total. It means no seat is classified as first, business, or premium economy in this dataset. It does not claim the operator never markets a premium product or never creates one by blocking adjacent seats.

## How far can premium cabin share move on the same aircraft type?

Premium cabin share comparisons hold the airframe constant and change the
operator and cabin layout. Each selected aircraft type clears the same minimum
layout threshold, so a single unusual configuration cannot create the
comparison by itself.

**Premium cabin share on the same aircraft type by operator**

| Category | Lowest premium share | Highest premium share |
| --- | --- | --- |
| Boeing 777-300ER, 38 layouts | 6% | 48% |
| Airbus A330-900neo, 7 layouts | 8% | 45% |
| Airbus A350-1000, 10 layouts | 12% | 47% |
| Boeing 787-9 Dreamliner, 36 layouts | 9% | 44% |
| Airbus A319, 10 layouts | 0% | 33% |
| Boeing 767-300ER, 7 layouts | 9% | 41% |

Selected aircraft types with at least 6 publishable layouts are: Boeing 777-300ER: 6% at Qatar Airways to 48% at British Airways, a 43-point spread across 38 layouts for this type; Airbus A330-900neo: 8% at Garuda Indonesia to 45% at Virgin Atlantic, a 37-point spread across 7 layouts for this type; Airbus A350-1000: 12% at Etihad Airways to 47% at Delta Air Lines, a 36-point spread across 10 layouts for this type; Boeing 787-9 Dreamliner: 9% at EVA Air to 44% at Air New Zealand, a 35-point spread across 36 layouts for this type; Airbus A319: 0% at Brussels Airlines to 33% at Finnair, a 33-point spread across 10 layouts for this type; Boeing 767-300ER: 9% at LATAM Airlines to 41% at United Airlines, a 32-point spread across 7 layouts for this type.

The Boeing 777-300ER moves from 6% at Qatar Airways to 48% at British Airways, a 43-point gap within 38 layouts for this type. The same airframe can therefore be mostly economy or nearly half premium. A per-passenger premium assumption attached to the aircraft type alone has lost the operator-specific inventory fact that gives the assumption commercial meaning.

**Aside:** **Inspect the source pages.** The aircraft hubs supplying the comparisons are [Boeing 777-300ER](/seat-maps/aircraft/boeing-777-300er-b77w), [Airbus A330-900neo](/seat-maps/aircraft/airbus-a330-900neo-a339), [Airbus A350-1000](/seat-maps/aircraft/airbus-a350-1000-a35k), [Boeing 787-9 Dreamliner](/seat-maps/aircraft/boeing-787-9-dreamliner-b789), [Airbus A319](/seat-maps/aircraft/airbus-a319-a319), and [Boeing 767-300ER](/seat-maps/aircraft/boeing-767-300er-b763). The endpoint operator hubs are [Qatar Airways](/seat-maps/airlines/qatar-airways-qr), [British Airways](/seat-maps/airlines/british-airways-ba), [Garuda Indonesia](/seat-maps/airlines/garuda-indonesia-ga), [Virgin Atlantic](/seat-maps/airlines/virgin-atlantic-vs), [Etihad Airways](/seat-maps/airlines/etihad-airways-ey), [Delta Air Lines](/seat-maps/airlines/delta-air-lines-dl), [EVA Air](/seat-maps/airlines/eva-air-br), [Air New Zealand](/seat-maps/airlines/air-new-zealand-nz), [Brussels Airlines](/seat-maps/airlines/brussels-airlines-sn), [Finnair](/seat-maps/airlines/finnair-ay), [LATAM Airlines](/seat-maps/airlines/latam-airlines-la), and [United Airlines](/seat-maps/airlines/united-airlines-ua). Each hub leads to the publishable layouts behind the stated share and layout count.

## Does premium cabin share mean business class share?

No. Premium means every recorded seat that is not in the economy family. It
combines first, business, and premium economy. A reader looking only for
lie-flat business capacity would misread the comparison, because premium
economy and first contribute to the same combined share.

The source [cabin layouts](/glossary/cabin-layout) keep those families separate,
so a class-by-class analysis is possible. This article deliberately keeps the
combined definition because a distribution lead first needs to know how much
of the departure sits outside the broad economy proposition. The split within
that premium inventory is a separate merchandising question.

## Why does operator-specific premium cabin share change an upsell plan?

Operator-specific premium cabin share changes an [upsell](/glossary/upsell)
plan because the plan has to start from what the traveller already holds and
what the departure can actually offer. A mostly-economy layout creates a
different opportunity from a layout where a large part of the cabin already
sits in premium families. Applying one per-passenger premium assumption to an
aircraft type hides that difference before any commercial rate is considered.

The same distinction affects downstream presentation. A seller that reduces
the cabin to an airframe label loses an operator-specific product fact. The
[economy pitch comparison](/learn/economy-seat-pitch-variation) shows the same
problem in the seat experience, while the [ancillary revenue
arithmetic](/learn/ancillary-revenue-arithmetic) shows why the operating
configuration must stay attached to a per-passenger denominator.

## How should distribution teams use operator-specific premium cabin share?

Operator-specific premium cabin share becomes usable when the operating layout
stays attached to each departure and every later assumption keeps the same
premium definition.

1. **Resolve the operating layout**

   Use the operator and the cabin configuration assigned to the departure. Aircraft type alone is not the commercial denominator.

2. **Keep the premium definition beside the figure**

   State whether the share combines first, business, and premium economy or measures one family alone.

3. **Attach assumptions only after the inventory is known**

   Apply your own eligible-passenger and value assumptions after the operating cabin mix has been resolved.

This is the difference between a fleet label and [merchandising](/glossary/merchandising)
evidence. The fleet label identifies what can operate. The cabin layout
identifies what can be presented on that departure.

## Keep the operating cabin attached to the seat offer

DepartCart's seat selection surface preserves the operator and cabin layout behind the seat a traveller is considering.

[Explore seat selection](/platform/seat-selection)

## Frequently asked questions

### What does premium cabin share mean in this analysis?

It is the share of recorded seats that are not in an economy-family cabin. First, business, and premium economy are combined, so the measure is broader than business class alone.

### Is premium cabin share a property of the aircraft type?

No. The airframe defines the aircraft, while the operator chooses the cabin plan. The same aircraft type can therefore carry a very different balance of economy and premium inventory.

### What does a zero premium cabin share mean?

It means every recorded seat in that layout is assigned to an economy-family cabin and the cabin seats reconcile to the layout total. It does not claim that the operator never markets a premium product.

### Why combine first, business, and premium economy?

The source records those families separately, but the distribution question here is how much inventory sits outside economy. A class-by-class analysis would answer a different merchandising question.