United Airlines 787-8 & 787-9 Seat Selection Guide (2026)
Quick Verdict
✈️ United operates the 787-8 and 787-9 in three separate configurations, and they are not close to equivalent. Two aircraft can both say "Boeing 787-9" on your boarding pass and differ by 35 seats, an entire Business Class product, and the internet.
Fastest tell: 243 seats = 787-8 · 257 seats = 787-9 Polaris · 222 seats = 787-9 Elevated (doored suites).
| 787-8 | 787-9 (Polaris) | 787-9 (Elevated) | |
|---|---|---|---|
| Fleet size | 12 | 51 | 4 and growing |
| Total seats | 243 | 257 | 222 |
| Business | 28 Polaris | 48 Polaris | 64 Polaris, all with doors (incl. 8 Polaris Studio) |
| Premium Plus | 21 | 21 | 35 |
| Economy Plus | 36 | 39 | 39 |
| Standard Economy | 158 | 149 | 84 |
| Business rows | 1–7 | 1–12 | 1–17 (no row 13) |
| Business doors | No | No | Yes |
| IFE | 16" seatback | 16" seatback | 19" 4K OLED (27" in Studio) |
| Power | 110V AC + USB-A | 110V AC + USB-A | 110V AC + USB-C, Bluetooth, wireless charging |
✅ Best seats, one line each
- 787-8 Polaris: 4A or 4L (window), 4D/4F (couples). Rows 3, 6 and 7 are also clean.
- 787-9 Polaris: 11A or 11L — mid rear cabin, no galley, no lavatory, aligned window. 11D/11F for couples.
- 787-9 Elevated: 1A or 1D for a Polaris Studio; 14A or 14L for the best standard suite.
- Premium Plus: 22A/22L on the Elevated and the 787-8; 21A/21L on the 787-9 Polaris.
- Economy Plus: 32A/32L or 33A/33L on both 787-9s; 31A/31L on the 787-8.
🚫 Seats to avoid, one line each
- 787-8: 5A/5L (no window), row 42 at the exit doors, rows 39–40 and 51–53 by the lavatories.
- 787-9 Polaris: 9L (lavatory door in front), rows 34 and 35 (lavatory bank behind the whole row).
- 787-9 Elevated: 9A and 9L — Polaris Studio suites with a lavatory door immediately in front. Also 24A/24L and 30A/30L, which have no window at all.
The Version Lottery
There is no lottery on the 787-8
All 12 of United's 787-8s share one configuration: 28 Polaris, 21 Premium Plus, 194 Economy. If your aircraft is a 787-8, the map above is the map you will get.
The 787-9 lottery is the significant one
United flies two completely different 787-9 interiors, and the gap between them is the widest in the fleet. The Elevated 787-9 wins in every cabin — doors in Business, a materially larger Premium Plus cabin, 4K OLED screens throughout, Bluetooth audio and wireless charging. The trade-off is that standard Economy shrinks from 149 seats to 84, so Economy Plus on the Elevated aircraft sells out much earlier.
⚠️ The odds
With 51 aircraft in the old configuration against 4 in the new one, you are overwhelmingly likely to draw the standard Polaris cabin on any given 787-9. Treat the Elevated aircraft as something to seek out deliberately, not something to hope for.
Seat Letters: Read This First
The single most common mistake in United 787 seat advice is getting the letters wrong. United's 787 fleet does not use G, H or I.
- Polaris (1-2-1): A | D F | L — there is no 4K and no 4G. The right-hand window is 4L.
- Premium Plus (2-3-2): A C | D E F | J L — no B and no K.
- Economy (3-3-3): A B C | D E F | J K L — middles are B, E and K.
If a seat number contains G, H or I, it does not exist on this aircraft.
Polaris Business Class
787-8 Polaris (28 seats, rows 1–7)
A staggered 1-2-1 layout split into a five-row forward cabin and a two-row rear mini-cabin behind the door 2 galley. Every seat has direct aisle access: 20" wide, converting to a 6'6" flat bed, with a 16" screen, 110V AC power and USB-A. Odd rows sit closer to the window with the console on the aisle side; even rows sit closer to the aisle. Rows 1 and 6 are bulkheads with wider footwells.
✅ Best
- 4A / 4L — mid-cabin, well-aligned window, no galley or lavatory adjacency.
- 4D / 4F — the best couples pair, with moveable aisle armrests.
- 3A / 3L, 6A / 6L, 7A / 7L — clean alternatives; 6A/6L are bulkheads with the wider footwell.
- 1D — bulkhead centre with the extra footwell, and unlike 1F it is not next to the forward lavatory.
🚫 Avoid
- 5A / 5L — no usable window, solid fuselage alongside.
- 1F / 1L — lavatory immediately forward, queuing traffic all flight.
- 2A / 2L — poor window alignment; two windows, both badly off-centre.
- Row 7 — fine seats, but bassinet positions are fitted directly behind in Premium Plus row 20.
787-9 Polaris (48 seats, rows 1–12)
Same seat, more of it: an eight-row forward cabin and a four-row rear cabin. The rear cabin is the quieter half.
✅ Best
- 11A / 11L — the quietest seats on the aircraft: mid rear cabin, aligned window, nothing within two rows.
- 11D / 11F — best couples pair, for the same reasons.
- 4A / 4L, 10A / 10L, 3A / 3L — strong alternatives; 3A/3L have two aligned windows each.
- 9A — bulkhead throne with a wider footwell and two aligned windows (9L is not equivalent).
🚫 Avoid
- 9L — a lavatory door sits immediately in front. The one genuinely bad Polaris seat on the 787-9.
- 5A / 5L — no usable window.
- 6A / 6L, 8A / 8L — poor window alignment.
- 1F / 1L — lavatory forward; 1A and 1L also carry bassinet mounts.
787-9 Elevated Polaris (64 suites, rows 1–17, no row 13)
The headline product: 64 doored suites in 1-2-1 at 21" wide with a 19" 4K OLED screen, Bluetooth audio, wireless charging and USB-C. Two details drive seat selection.
Orientation flips mid-aircraft. In rows 1–8 the D and F suites face away from the aisle, which makes the centre pair unusually private. From row 9 back they face the aisle. If privacy in a centre suite matters, book forward.
Polaris Studio is only two rows, and one of them is compromised. The eight Studio suites — roughly 25% larger, with a 27" screen and an ottoman big enough for a companion at dinner — are in row 1 and row 9 only. Row 9 is the bulkhead directly behind the door 2 galley and lavatories.
✅ Best
- 1A — the best seat on the aircraft: Polaris Studio, aligned window, forward lavatory on the opposite side.
- 1D — Studio centre facing away from the aisle; the most private Studio, pair it with 1F.
- 14A / 14L — best standard suite: two aligned windows, dead centre of the rear cabin.
- 14D / 14F — best couples pair in the rear cabin.
- 4A / 4L, 8L, 11A / 11L, 15A / 15L — clean suites, aligned windows, no facility adjacency.
🚫 Avoid
- 9A / 9L — Studio suites with a lavatory door immediately in front. Same hardware and fare as row 1, constant traffic.
- 1L — Studio, but a lavatory door sits directly in front.
- 9D / 9F — Studio centre pair in the lavatory queuing path.
- 5A / 5L — no usable window. 3L, 6A — poor window alignment.
Premium Plus
2-3-2 across all three configurations, letters A C | D E F | J L. E is the only true middle seat in the cabin — a real advantage over a 2-4-2 premium economy.
787-8 (21 seats, rows 20–22)
38" pitch, 18.7" wide, 6" recline, 13" screen. The bulkhead problem: 20D, 20E and 20F sit against a wall only about 25–26" ahead — noticeably tighter than a normal bulkhead — with trays in the armrests and no floor storage for take-off and landing. Row 20 centre is worse than rows 21 or 22 despite looking generous on a seat map.
Best: 22A/22L (aligned window, furthest from the row 20 bassinets), 21C/21J for aisles. Avoid: 20D/20E/20F (cramped bulkhead), 21A/21L (poor window alignment), 20E worst of all.
787-9 Polaris (21 seats, rows 20–22)
Same seat, but row 20 is not cramped on this aircraft — the wall sits at a normal bulkhead distance, making it a legitimate legroom pick. Bassinets mount at 20A, 20E and 20L. Best: 21A/21L (two aligned windows each, no bassinet alongside), then 20A/20L for legroom. Avoid: the E middles.
787-9 Elevated (35 seats, rows 20–24)
The largest Premium Plus cabin United flies: 38" pitch, 19" wide, 16" 4K OLED screen, Bluetooth, wireless charging, USB-C, winged privacy headrest. Best: 22A/22L (two aligned windows, dead centre of a five-row cabin), 22C/22J for aisles, 20A/20L for bulkhead legroom. Avoid: 24A/24L (no window at all, lavatories behind) and 24D/24E/24F (lavatory queue).
Economy Plus and Economy
All three aircraft use 3-3-3 with letters A B C | D E F | J K L. Economy Plus is 34" pitch against 31" in standard Economy, and Economy Plus headrests are accented dark navy.
⚠️ The Economy Plus trap on the 787-9 (Polaris config)
In rows 31–34, Economy Plus follows the window columns, not the row: rows 31–33 are Economy Plus in A B C and J K L only, with D E F at standard 31" pitch; row 34 is Economy Plus in A B C only. Book "row 33" expecting extra legroom and you get 34" at 33A and 31" at 33E.
The 787-8 has the opposite pattern: all of rows 30 and 31, then 32D/E/F and 33D/E/F only, plus all of row 42 and 43J/K/L. The Elevated 787-9 is the simple one — all 39 Economy Plus seats are in rows 30–34 with no column splits.
Best Economy seats
- 787-8: 31A/31L in Economy Plus (34", aligned window, floor storage); 30C/30J have partial bulkheads only. Best standard Economy: 44A, plus 36A/36L, 45L and 46A.
- 787-9 Polaris: 32A/32L and 33A/33L in Economy Plus; best standard Economy is 48A/48L and 55A/55L, with 43A/43L enjoying an open outlook.
- 787-9 Elevated: 32A/32L and 33A/33L (first rows clear of the lavatory bank), 33C/33J for the cleanest aisles; best standard Economy is 35A/35L, then 40A/40L.
Economy seats to avoid
- 787-8: rows 38–40 centre and aisles (lavatory bank behind the centre block); row 42, where door structure intrudes across ~85% of 42A and 42L and neither has a usable window; rows 51–53, where lavatories sit behind row 51 and the cabin tapers.
- 787-9 Polaris: rows 34 and 35 — the worst rows on the aircraft, with a lavatory bank behind row 35 reaching forward to row 34 on both sides (34A/B/C even carries Economy Plus pitch). Also 42A/42L (door intrusion, no window) and row 57 against the rear bulkhead.
- 787-9 Elevated: row 30 (door intrusion at 30A/30L, lavatory door at 30B/30C/30J), row 31 (same lavatory bank), 32D/32E/32F (bulkhead facing the centre lavatories), 41A/41L (no window) and row 43 plus 44D/44F by the rear lavatories.
Quick-Pick Summary
| Traveller | 787-8 | 787-9 Polaris | 787-9 Elevated |
|---|---|---|---|
| Solo, Business | 4A or 4L | 11A or 11L | 1A (Studio) or 14A |
| Couple, Business | 4D / 4F | 11D / 11F | 1D / 1F (Studio) or 14D / 14F |
| Best value premium | 22A / 22L | 21A / 21L | 22A / 22L |
| Legroom priority | 31A / 31L | 32A / 32L | 33C / 33J |
| Sleeping in Economy | 44A | 48A / 48L or 55A / 55L | 35A / 35L |
| Travelling with an infant | 20A / 20L | 20A / 20E / 20L | 31C / 31J or 32E |
How to Tell Which Version You're On
- Check the seat count. 243 = 787-8; 257 = 787-9 Polaris; 222 = 787-9 Elevated.
- Check where Business ends. Row 7 = 787-8; row 12 = 787-9 Polaris; row 17 with no row 13 = Elevated.
- Check Premium Plus. Three rows (20–22) = older configurations; five rows (20–24) = Elevated.
- Check Economy. Running past row 50 = older configuration; ending at row 44 = Elevated.
Frequently Asked Questions
What is the difference between Polaris and Polaris Studio?
Polaris Studio suites are found only on the Elevated 787-9, in row 1 and row 9. They are roughly 25% larger than a standard Polaris suite, with a 27" 4K OLED screen instead of 19", and an ottoman large enough for a companion to sit with you during a meal. Both products have sliding privacy doors. There are eight Studio suites per aircraft.
Which Polaris Studio should I book?
1A or 1D. Row 1 and row 9 hold identical hardware at identical fares, but row 9 sits directly behind the door 2 galley and lavatories — 9A and 9L have a lavatory door immediately in front, and 9D and 9F sit in the queuing path. Row 1 has one weak seat, 1L, for the same reason.
Do all United 787-9s have doors on the Business Class seats?
No. Only the Elevated configuration has doored suites. The great majority of United's 787-9 fleet still flies the older staggered Polaris seat, which has no door. Confirm via the seat count: 222 seats means doors, 257 means no doors.
Is Premium Plus worth paying for over Economy Plus?
On a long-haul flight, generally yes. Premium Plus gives you a separate cabin, roughly 19" of width against 17.1", 38" of pitch against 34", six inches of recline, leg and foot rests, and upgraded catering, bedding and amenities. Economy Plus buys you legroom and nothing else.
Which seats have no window on United's 787s?
On the 787-8 and the 787-9 Polaris: 5A, 5L, 42A and 42L. On the Elevated 787-9: 5A, 5L, 24A, 24L, 30A, 30L, 41A and 41L. Several more seats have windows that are badly offset rather than absent — those are marked on the seat maps above.
Why does my seat number have an L instead of a K?
United's 787s use the letters A, B, C, D, E, F, J, K, L, skipping G, H and I. In Business Class only A, D, F and L exist. In Premium Plus there is no B and no K. Any advice referring to seat 4K or 20B on these aircraft is describing a seat that does not exist.