20J · 159Y · 42 Economy Plus seats
- Business
- 20J
- Economy
- 159Y
This version of the United Airlines Boeing 737-900 holds 20 business and 159 economy seats and is fitted with 42 Economy Plus seats
Cabin layout

This version of the United Airlines Boeing 737-900 holds 20 business and 159 economy seats and is fitted with 45 Economy Plus seats
Last verified October 14, 2026Verified by Alex Westridge
Twenty cradle seats in a 2-2 layout.
159 Collins Aerospace Pinnacle slimline seats featuring an adjustable headrest and a tablet holder in a 3-3 layout.

Flying this Boeing 737-900? See which seats are still open
Enter your United Airlines flight number and date on the live seat map to see the open seats on your flight, with every seat's comfort score.
Ranked by cabin from the per-seat ratings, window quality, and traveler notes on the United Airlines Boeing 737-900 seat map.
The best seat on the United Airlines Boeing 737-900 is 03A. In Business, go for 03A or 01A; in Economy, 09F and 27A are recommended for a good window.
Window·Recommended
Window·Recommended
Pitch about 33". 3" roomier than the rest of this cabin.
Window·Recommended
Window·Recommended
Window·Recommended
Window·Recommended
Window·Recommended
Window·Recommended
Window·Recommended
Window·Recommended
Window·Recommended
Window·Recommended
Compare the cabins on this aircraft side by side, so you can weigh the jump in pitch, width, and amenities against the fare.
| Spec | Domestic First | Economy |
|---|---|---|
| Seats | 20 | 159 |
| Pitch | 37" | Economy Plus seats: 33" Rows 20 and 21: 39" |
| Width | 20" | 17" |
| Recline | Row 5: 4" | Economy Plus: 3" Seats in rows 15, 20, and 39 do not recline |
| Power | 110V universal AC | 110V universal AC |
| Screen | Audio and video streamed to your own phone or tablet. | Audio and video streamed to your own phone or tablet. |
| Wi-Fi | ViaSat KA-band | ViaSat KA-band |
What every symbol, measurement, and color on the map means, so you can compare seats, cabins, and aircraft with confidence.
Row pitch
Distance from a point on one seat to the same point on the seat in the row ahead. A useful proxy for legroom.
Seat width
Measured across the seat cushion between the inner edges of the armrests.
Seat recline
How far the seat tilts back from upright, measured as the travel at the headrest.
Good
Steady enough for messaging and email.
Better
Comfortable browsing and light streaming.
Best
Fast enough for video calls and streaming.
Recommended
Above average. A strong pick on this aircraft.
Caution
Some trade-offs worth weighing before you book.
Avoid
Below average, with known drawbacks to avoid.
Pick your route and date to see which seats on the United Airlines Boeing 737-900 are still open.
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Open the live mapAdd your route to compare First, Business, and Economy on the Boeing 737-900.
Open the live mapThis airline flies the same aircraft in more than one cabin layout. Here is what separates them, so you know which one you are looking at before you pick a seat.
This version of the United Airlines Boeing 737-900 holds 20 business and 159 economy seats and is fitted with 42 Economy Plus seats
This version of the United Airlines Boeing 737-900 holds 20 business and 159 economy seats and is fitted with 45 Economy Plus seats
How to read the map, what the ratings mean, and what you need to get started.
The map is drawn to scale from real cabin data, including window alignment, galleys, lavatories, and exit rows. Airlines can swap aircraft, so always confirm your seat at check-in.
Fitted differently by 2 other airlines. Tick a map to compare it side by side.
| Cabins | ||||
|---|---|---|---|---|
United AirlinesThis page UA · 45 Economy Plus seats · Business, Economy 179 seats · 17" wide · 2" recline | Business 20 · Economy 159 | 30" | ||
Business 42 · Economy 150 | 30-33" | |||
Business 8 · Economy 180 | 31"+1"+1" more | |||
Business 20 · Economy 159 | 30" |
Legroom, seat width and recline are for economy seats.
Put this cabin next to another airline's version, or any other aircraft, and read every spec difference side by side.