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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
United 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.🧥 CLOSETLAVATORY (left)🚻 LAVATORYGALLEY (full_width) — Mid galley behind Polaris.🍽 GALLEYLAVATORY (right)🚻 LAVATORYBASSINET (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.🍼 BASSINETLAVATORY (left)🚻 LAVATORYLAVATORY (center)🚻 LAVATORYGALLEY (full_width) — Aft galley.🍽 GALLEYLAVATORY (right)🚻 LAVATORY12345678910111213141520212223242526272829303132333435363738394041424344454647484950AEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKAEFKACDEFGHKACDEFGHKACDEFGHKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKEFABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKBCDEFGHJCDEFGHEXIT — 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.GALLEYLAVATORYLAVATORYLAVATORYLAVATORYEXIT — 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.

At a glance
350 seats
Rating mix
52Great92Good176Standard24Be aware6Avoid
Best seats
  • — True window single with direct aisle access - most private Polaris seat for solo travelers.
Seats to avoid
  • — Last row: recline limited or fixed against the rear bulkhead.
Worth knowing
  • Exit rows: 23, 38, and 39
  • 82 extra-legroom seats
  • 22 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 - most private Polaris seat for solo travelers.

Seats to avoid

  • 50C, 50D, 50E, 50F, 50G, 50H — Last row: recline 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 1–1560 seats

Best seats

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

Seats to avoid

  • 15A, 15E, 15F, 15K — Last Polaris row: adjacent to the mid galley and lavatory - foot traffic and noise.
Worth knowing
  • Rows next to a galley: 15
  • Rows next to a lavatory: 15
  • 4 seats without under-seat storage

United Premium Plus

2-4-2Rows 20–2224 seats

Best seats

  • 20A, 20C, 20D, 20E, 20F, 20G, 20H, 20K — Premium Plus bulkhead: extra legroom and bassinet mount positions, but no under-seat storage and tray tables stow in the armrest (slightly narrower).
Worth knowing
  • 8 seats without under-seat storage

United Economy Plus

3-4-3Rows 23–2962 seats

Best seats

  • 23A, 23B, 23C, 23D, 23E, 23F, 23G, 23H, 23J, 23K — Economy Plus bulkhead at the Door 2 exit: generous legroom, but no under-seat storage, tray in armrest, and exit-row occupancy restrictions.
  • 24A, 24B — Extra legroom compared with the cabin standard

Seats to avoid

  • 29E, 29F — Center-only row flanked by galleys and lavatories - extra legroom but persistent traffic and noise.
Worth knowing
  • Exit rows: 23
  • Rows next to a galley: 29
  • 62 extra-legroom seats
  • 10 seats without under-seat storage

United Economy

3-4-3Rows 30–50204 seats

Best seats

  • 38A, 38B, 38C, 38D, 38E, 38F, 38G, 38H, 38J, 38K, 39A, 39B — Door 3 exit row: extra legroom. Tray in armrest and exit-row occupancy restrictions apply.

Seats to avoid

  • 50C, 50D, 50E, 50F, 50G, 50H — Last row: recline limited or fixed against the rear bulkhead.
  • 37A, 37B, 37C, 37D, 37E, 37F — Row immediately ahead of the Door 3 exit - seat-back recline is limited or fixed.
Worth knowing
  • Exit rows: 38 and 39
  • Rows next to a galley: 49 and 50
  • Rows next to a lavatory: 50
  • 20 extra-legroom seats

Frequently asked questions

How many seats does the United Airlines Boeing 777-300ER have?
This configuration has 350 seats: 60 United Polaris, 24 United Premium Plus, 62 United Economy Plus, 204 United Economy.
What are the best seats on the United Airlines Boeing 777-300ER?
Top-rated in our data: 2A, 2K, 3A, 3K, 4A, 4K, 5A, 5K — True window single with direct aisle access - most private Polaris seat for solo travelers.
Which seats should I avoid?
Flagged in our data: 50C, 50D, 50E, 50F, 50G, 50H — Last row: recline limited or fixed against the rear bulkhead; 15A, 15E — Last Polaris row: adjacent to the mid galley and lavatory - foot traffic and noise.
Which rows are the exit rows?
Rows 23, 38, and 39 are exit rows.
Does the United Airlines Boeing 777-300ER have lie-flat seats?
Yes — United Polaris has 60 seats that convert to a fully flat bed.

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.

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 777-300ER seat map diagram — United Polaris, United Premium Plus, United Economy Plus, United Economy (350 seats)

Download PNG

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.