# United Airlines Boeing 787-9 Dreamliner seat map

URL: https://all-ancillaries-9z82vkas5-britoncos-projects.vercel.app/seat-maps/united-airlines-ua/boeing-787-9-dreamliner-b789
Updated: 2026-08-03

Researched cabin layout for the United Airlines Boeing 787-9 Dreamliner: 257 seats, cabin by cabin, with real rows, exits and seat pitch where it is recorded.

Operator: United Airlines
Aircraft: Boeing 787-9 Dreamliner
Manufacturer: Boeing
Category: widebody
Region: North America
Seats: 257
Researched cabins: 3
Based in: United States

## 48J / 188Y

257 seats in 3 cabins. 1 exit row.

| Cabin | Seats | Abreast | Pitch |
| --- | --- | --- | --- |
| United Polaris | 48 | 1-2-1 | Not recorded |
| Premium Plus | 21 | 2-3-2 | 38" |
| Economy | 188 | 3-3-3 | Not recorded |

## Where this comes from

Every row above is researched against published cabin plans for this operator and then checked against live availability. Where a figure is not known it says so rather than being estimated, which is why some pitch cells read "not recorded" instead of carrying a number we would not defend.

[Seats abreast](https://all-ancillaries-9z82vkas5-britoncos-projects.vercel.app/glossary/seats-abreast), [seat pitch](https://all-ancillaries-9z82vkas5-britoncos-projects.vercel.app/glossary/seat-pitch) and [cabin layout](https://all-ancillaries-9z82vkas5-britoncos-projects.vercel.app/glossary/cabin-layout) are defined in the glossary.