SeatRecon
Being replacedDERIVED LAYOUT

United Airlines Boeing 787-9 seat map — 257 seats

787-9 (257 seats: Polaris + Premium Plus + Economy Plus + Economy)
257 seats48J/21W/39N/149Y48 aircraft (as of Jul 14, 2026)Last verified Jul 14, 2026
Layout reconstructed from airline-published counts — exact seat geometry is approximate.
This cabin is being replaced by the 787-9 "Elevated" (222 seats: 8 Polaris Studio + 56 Polaris + 35 Premium Plus + 33 Economy Plus + 90 Economy) configuration →

Seat map

Hover or tap any seat to see its rating and details.

Rating
GreatGoodStandardBe awareAvoid
Seat shape
SuiteLie-flatReclinerStandard
Flags & windows
Has a noteWindow mismatch flaggedNo window (structural blank)
Provenance
PUBLISHED MAPDERIVED LAYOUTMIXED SOURCES
United PolarisBusiness · 1-2-1United Premium PlusPremium Economy · 2-3-2United Economy PlusExtra-Legroom Economy · 3-3-3United EconomyEconomy · 3-3-3GALLEY (full_width) — Forward galley/closets at Door 1.🍽 GALLEYLAVATORY (left) · position derived🚻 LAVATORYGALLEY (full_width) — Mid galley/lavatories behind Polaris (Door 2 zone). · position derived🍽 GALLEYLAVATORY (right) · position derived🚻 LAVATORYBASSINET (center) — Bassinet mounts at the Premium Plus bulkhead. · position derived🍼 BASSINETBASSINET (center) — Bassinet mounts at the Economy Plus bulkhead. · position derived🍼 BASSINETLAVATORY (left) · position derived🚻 LAVATORYGALLEY (full_width) — Aft galley. · position derived🍽 GALLEYLAVATORY (right) · position derived🚻 LAVATORY12345678910111214151617181920212223242526272829303132333435363738AEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKACDEFHKACDEFHKACDEFHKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKDEFABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKABCDEFHJKCDEFHEXIT — Door 1 (forward).EXITEXIT — Door 1 (forward).EXITEXIT — Door 2.EXITEXIT — Door 2.EXITGALLEY — Side galleys/lavatories occupying the outer sections of row 21.GALLEYGALLEY — Side galleys/lavatories occupying the outer sections of row 21.GALLEYLAVATORYLAVATORYLAVATORYLAVATORYEXIT — Door 3 (over-wing exit row).EXITEXIT — Door 3 (over-wing exit row).EXITEXIT — Door 4 (aft).EXITEXIT — Door 4 (aft).EXIT

Tap or hover a seat for its rating and details. On a phone, pinch to zoom and drag to pan.

At a glance
257 seats
Rating mix
40Great68Good140Standard4Be aware5Avoid
Best seats
  • — True window single with direct aisle access — the most private Polaris seat for solo travellers.
Seats to avoid
  • — Last row: recline is limited or fixed against the rear bulkhead.
  • — Last Polaris row — next to the mid-cabin galley and lavatories: foot traffic and noise.
Worth knowing
  • Exit rows: 30
  • Bassinet rows: 14 and 17
  • 48 extra-legroom seats
  • 29 seats without under-seat storage

Tap a seat number to jump to it on the map.

How we rate seats →

Best & worst seats

Our rating engine's picks for this cabin layout — see any seat's full reasoning in the map above.

Best seats

  • 2A, 2K, 3A, 3K, 4A, 4K — True window single with direct aisle access — the most private Polaris seat for solo travellers.

Seats to avoid

  • 38C, 38D, 38E, 38F, 38H — Last row: recline is limited or fixed against the rear bulkhead.

Seat guide

Cabin-by-cabin guidance generated from the verified layout records behind this map — which seats the ratings favor, which to think twice about, and the rows worth knowing about before you pick.

United Polaris

1-2-1Rows 1–1248 seats

Best seats

  • 2A, 2K, 3A, 3K, 4A, 4K, 5A, 5K, 6A, 6K, 7A, 7K — True window single with direct aisle access — the most private Polaris seat for solo travellers.

Seats to avoid

  • 12A, 12E, 12F, 12K — Last Polaris row — next to the mid-cabin galley and lavatories: foot traffic and noise.
Worth knowing
  • Rows next to a galley: 12
  • Rows next to a lavatory: 12
  • 4 seats without under-seat storage

United Premium Plus

2-3-2Rows 14–1621 seats

Best seats

  • 14A, 14C, 14D, 14E, 14F, 14H, 14K — Premium Plus bulkhead: extra legroom and bassinet mount positions, but no under-seat storage and the tray table stows in the armrest (slightly narrower).
Worth knowing
  • Bassinet rows: 14
  • 7 seats without under-seat storage

United Economy Plus

3-3-3Rows 17–2139 seats

Best seats

  • 17A, 17B, 17C, 17D, 17E, 17F, 17H, 17J, 17K — Economy Plus bulkhead: extra legroom and bassinet mounts ahead, but no under-seat storage for take-off and landing.
  • 18A, 18B, 18C — Extra legroom compared with the standard Economy seat.
Worth knowing
  • Bassinet rows: 17
  • 39 extra-legroom seats
  • 9 seats without under-seat storage

United Economy

3-3-3Rows 22–38149 seats

Best seats

  • 22A, 22B, 22C, 22D, 22E, 22F, 22H, 22J, 22K — Bulkhead row: open floor space ahead and no seat reclining into you, but no under-seat storage.
  • 30A, 30B, 30C — Exit row over the wing: extra legroom with full recline.

Seats to avoid

  • 38C, 38D, 38E, 38F, 38H — Last row: recline is limited or fixed against the rear bulkhead.
Worth knowing
  • Exit rows: 30
  • Rows next to a galley: 38
  • Rows next to a lavatory: 38
  • 9 extra-legroom seats
  • 9 seats without under-seat storage

Frequently asked questions

How many seats does the United Airlines Boeing 787-9 have?
This configuration has 257 seats: 48 United Polaris, 21 United Premium Plus, 39 United Economy Plus, 149 United Economy.
What are the best seats on the United Airlines Boeing 787-9?
Top-rated in our data: 2A, 2K, 3A, 3K, 4A, 4K, 5A, 5K — True window single with direct aisle access — the most private Polaris seat for solo travellers.
Which seats should I avoid?
Flagged in our data: 38C, 38D, 38E, 38F, 38H — Last row: recline is limited or fixed against the rear bulkhead; 12A, 12E, 12F — Last Polaris row — next to the mid-cabin galley and lavatories: foot traffic and noise.
Which rows are the exit rows?
Row 30 is an exit row.
Which rows have bassinet positions?
Bassinet positions serve rows 14 and 17.
Does the United Airlines Boeing 787-9 have lie-flat seats?
Yes — United Polaris has 48 seats that convert to a fully flat bed.

Cabins

United Polaris

48 seats · 1-2-1 · lie-flat
Width
20"estimated
Seat
Lie-flat bed
Screen
16"
Power
AC power outlet · USB-A

180-degree flat bed measuring 6'6" (78 in) with direct aisle access (United Polaris product release). Seat width not published by United.

United Premium Plus

21 seats · 2-3-2
Pitch
38"estimated
Width
19"estimated
Seat
Recliner
Screen
13"
Power
AC power outlet · USB-A

United does not publish Premium Plus pitch/width; ~38-inch pitch is an estimate pending a citable United figure.

United Economy Plus

39 seats · 3-3-3
Pitch
34"estimated
Width
17"estimated
Seat
Extra-legroom seat
Power
AC power outlet · USB-A

United markets Economy Plus as extra legroom over standard Economy; exact pitch/width are not published (estimates).

United Economy

149 seats · 3-3-3
Pitch
31"estimated
Width
17"estimated
Seat
Standard seat
Power
AC power outlet · USB-A

United does not publish Economy pitch/width for the 787-9; ~31-inch pitch is an estimate.

Onboard facilities

Drawn on the interactive map above — hover a monument to confirm its position.

6 lavatories · 4 galleys · 4 door pairs

🚪 EXIT × 4🍽 GALLEY × 4🚻 WC × 6🍼 BASSINET × 2

Amenities

Wi-Fi
Available
paid · Satellite Wi-Fi available for purchase on the legacy 787-9; provider not stated in the cited primary sources.
Entertainment
Seatback screens
Personal on-demand seatback entertainment in every cabin; 16-inch HD screens in Polaris. Screen sizes in the economy cabins are not published by United.
Power
AC power outlet · USB-A
AC power and USB in every cabin (individual AC + USB in Polaris and Premium Plus).
Food & drink
Complimentary meals on long-haul international flights; Premium Plus adds enhanced meal service, an amenity kit and noise-reducing headphones.

Seat map image

A printable snapshot of this exact layout — save it for boarding-day reference. The interactive map above stays the source of truth.

United Airlines Boeing 787-9 seat map diagram — United Polaris, United Premium Plus, United Economy Plus, United Economy (257 seats)

Download PNG

Provenance

Sources

Every measurement and claim on this page traces back to one of these. Last verified Jul 14, 2026.

How this map was built

Legacy United Boeing 787-9 four-cabin layout (United Polaris lie-flat business, United Premium Plus premium economy, Economy Plus extra-legroom economy, Economy). Being converted away from as the "Elevated" interior (ua-789-222) rolls out. Per-cabin split 48 Polaris / 21 Premium Plus / 39 Economy Plus / 149 Economy = 257 per the Wikipedia United fleet table. IMPORTANT — the ROW GRID IS DERIVED, not a placard scan: united.com is bot-blocked and competitor seat-map sites are prohibited. Class layouts (Polaris 1-2-1, Premium Plus 2-3-2, Economy Plus / Economy 3-3-3) plus the Polaris lie-flat 6'6" bed / 16-inch screen and Premium Plus / Economy Plus products come from United's Polaris (2016-17) and Premium Plus (2018) product releases. Row numbers, exit-row placement (Door 3, row 30), the over-wing band, furniture, and the two derived partial rows were constructed to reproduce United's published per-cabin totals and abreast layouts and may differ from the actual airframe. Derivations: Polaris rows 1-12 (48); Premium Plus rows 14-16 (3x7=21); Economy Plus rows 17-21 (rows 17-20 = 36 full, row 21 reduced to the centre triple by side galleys to reach 39); Economy rows 22-38 (rows 22-37 = 144 full, row 38 tapered to 5 centre seats to reach 149). Pitch/width are not published by United and are flagged unsourced.

What changed

  1. Jul 14, 2026Initial legacy United 787-9 (257-seat) four-cabin config; per-cabin split from Wikipedia fleet table, Polaris/Premium Plus specs from United product releases, row grid derived from published layouts and totals. Linked as retrofit_source to ua-789-222.