# Boeing 737 MAX 9 seat maps

URL: https://departcart.com/seat-maps/aircraft/boeing-737-max-9-b39m

Updated: 2026-08-03

Researched Boeing 737 MAX 9 seat maps: 3 airlines, 4 cabin layouts, cabin by cabin, with real rows, exits and seat pitch where it is published.

## The airframe

ICAO type code: B39M
Manufacturer: Boeing
Family: 737 MAX
Category: narrowbody
Length: 42.16 m
Wingspan: 35.92 m
Engines: 2

## What we have researched

Airlines with a published layout: 3
Cabin layouts: 4
Seats per layout: 166 to 179
Regions: Latin America, North America
Cabin mix: Business 64, Economy 633
Seat pitch published: 0 of 8 cabins

Among published Boeing 737 MAX 9 layouts, the layout from Copa Airlines carries the fewest seats at 166, while the layout from United Airlines carries the most at 179.

[How much the same aircraft varies between airlines](/learn/cabin-layout-variation) puts these differences in context across every researched type.

Every researched cabin: [Airline seat maps](https://departcart.com/seat-maps)

## Airlines flying it

- [Alaska Airlines](https://departcart.com/seat-maps/alaska-airlines-as/boeing-737-max-9-b39m), 178 seats, North America
- [Copa Airlines](https://departcart.com/seat-maps/copa-airlines-cm/boeing-737-max-9-b39m), 166 to 174 seats, Latin America
- [United Airlines](https://departcart.com/seat-maps/united-airlines-ua/boeing-737-max-9-b39m), 179 seats, North America

## Where this comes from

Every layout above is researched against published cabin plans for the operator that flies it 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.

The same aircraft type is not the same cabin at two airlines. Seat count, pitch and the number of classes are decisions the operator makes, which is why this page counts layouts separately from airlines and links each one rather than publishing a single plan for the type.