SeatRecon
Currently flyingDERIVED LAYOUT

United Airlines Boeing 777-300ER seat map

777-300ER (350 seats: Polaris + Premium Plus + Economy Plus + Economy)
350 seats60J/24W/62N/204Y22 aircraftLast verified Jul 13, 2026
Layout reconstructed from airline-published counts — exact seat geometry is approximate.

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
WINGUnited PolarisBusiness · 1-2-1United Premium PlusPremium Economy · 2-4-2United Economy PlusExtra-Legroom Economy · 3-4-3United EconomyEconomy · 3-4-3CLOSET (both_sides) — Forward closets/galley at Door 1.🧥 CLOSETCLOSET (both_sides) — Forward closets/galley at Door 1.🧥 CLOSETWC (left)🚻 WCGALLEY (full_width) — Mid galley behind Polaris.🍽 GALLEYWC (right)🚻 WCBASSINET (center) — Bassinet mounts at the Premium Plus bulkhead.🍼 BASSINETGALLEY (full_width) — Galley between Premium Plus and Economy Plus (Door 2 area).🍽 GALLEYBASSINET (center) — Bassinet mounts at the Economy Plus bulkhead.🍼 BASSINETWC (left)🚻 WCWC (center)🚻 WCGALLEY (full_width) — Aft galley.🍽 GALLEYWC (right)🚻 WC12345678910111213141520212223242526272829303132333435363738394041424344454647484950AEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKACDEFGHKACDEFGHKACDEFGHKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKEFABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKBCDEFGHJCDEFGHEXIT — Door 1 (forward).EXITEXIT — Door 1 (forward).EXITEXIT — Door 2.EXITEXIT — Door 2.EXITGALLEY — Side galleys/lavatories occupying the window sections of row 29.GALLEYGALLEY — Side galleys/lavatories occupying the window sections of row 29.GALLEYWCWCWCWCEXIT — Door 3 (mid-cabin exits).EXITEXIT — Door 3 (mid-cabin exits).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.

Best & worst seats

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

Pick these
  • 2A, 2K, 3A, 3K, 4A, 4K — True window single with direct aisle access - most private Polaris seat for solo travelers.
Think twice
  • 50C, 50D, 50E, 50F, 50G, 50H — Last row: recline limited or fixed against the rear bulkhead.

Cabins

United Polaris

60 seats · 1-2-1 · lie-flat
Width
23"published
Seat
Lie-flat bed
Screen
16"
Power
AC power outlet · USB-A

180-degree flat bed measuring 6'6" (78 in) with infinite recline and one-touch lumbar support (United 2017 release).

United Premium Plus

24 seats · 2-4-2
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

62 seats · 3-4-3
Pitch
34"published
Width
17"estimated
Seat
Extra-legroom seat
Power
AC power outlet · USB-A

34-inch pitch per United 2017 newsroom release; width not published by United.

United Economy

204 seats · 3-4-3
Pitch
31"published
Width
17"estimated
Seat
Standard seat
Power
AC power outlet · USB-A

31-inch pitch per United 2017 newsroom release; width not published by United.

Onboard facilities

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

7 lavatories · 4 galleys · 4 door pairs

🚪 EXIT × 4🧥 CLOSET × 1🍽 GALLEY × 4🚻 WC × 7🍼 BASSINET × 2

Amenities

Wi-Fi
Available
paid · Satellite Wi-Fi available for purchase (United 2017 newsroom release). Provider not stated in cited primary sources.
Entertainment
Seatback screens
Personal on-demand seatback entertainment in every cabin; 16-inch HD screens in Polaris (2017 release). Screen sizes in other cabins not published by United.
Power
AC power outlet · USB-A
Universal AC power and USB in Polaris; individual AC power and USB in Premium Plus; in-seat power and USB in Economy Plus/Economy (2017 & 2018 newsroom releases).
Food & drink
Complimentary meals on long-haul international flights; Premium Plus adds enhanced meal service, amenity kit and noise-reducing headphones.
Provenance

Sources

Every measurement and claim on this page traces back to one of these. Last verified Jul 13, 2026.

How this map was built

Cabin seat counts (60 Polaris / 24 Premium Plus / 62 Economy Plus / 204 Economy = 350) per Wikipedia's United fleet table. Class layouts (Polaris 1-2-1, Economy Plus/Economy 3-4-3) plus Polaris bed size and Economy Plus 34-inch / Economy 31-inch pitch are from United's 2017 newsroom release; Premium Plus (added ~2018-2019, converting some of the original 102 Economy Plus seats) is 2-4-2. IMPORTANT - the ROW GRID is DERIVED, not a placard scan: united.com is bot-blocked and competitor seat-map sites are prohibited sources. Row numbers, exit-row placement, furniture positions, over-wing range, and the rear-taper / galley-reduced partial rows (23, 29, 49, 50) were constructed to reproduce United's published per-cabin totals and abreast layouts; they may differ from the actual aircraft placards. Polaris rows 1-15; Premium Plus rows 20-22; Economy Plus rows 23-29 (row 29 reduced to the center pair by side galleys to reach 62); Economy rows 30-50 (rows 49-50 taper to reach 204). Seat widths, recline values, Premium Plus pitch/width and non-Polaris screen sizes are not published by United and are flagged unsourced.

What changed

  1. Jul 13, 2026Round-2 integrity pass: window-alignment evidence reset, ratings coherence, v1.2 migration
  2. Jul 13, 2026Normalized to AUTHORING.md rubric: ratings coverage, flag semantics, v1.1 fields, id alignment
  3. Jul 13, 2026Initial ua-77w-350 seat map created from United newsroom releases + Wikipedia fleet table; row grid derived from published layouts and cabin totals.