United Airlines Boeing 787-9 seat map — 257 seats
Seat map
Hover or tap any seat to see its rating and details.
Tap or hover a seat for its rating and details. On a phone, pinch to zoom and drag to pan.
- Exit rows: 42
- 39 extra-legroom seats
Tap a seat number to jump to it on the map.
How we rate seats →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
Ratings are even across this cabin — no standout or problem seats in our records.
United Premium Plus
Ratings are even across this cabin — no standout or problem seats in our records.
United Economy
- Exit rows: 42
- 39 extra-legroom seats
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, 188 United Economy.
- What are the best seats on the United Airlines Boeing 787-9?
- No standout seat is established by the available evidence for this layout. Unresolved comfort details remain unverified.
- Which seats should I avoid?
- No seats on this layout are flagged as ones to avoid.
- Which rows are the exit rows?
- Row 42 is an exit row.
- 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
- Width
- 20.5"published
- Seat
- Lie-flat bed
- Screen
- 16"
United's current aircraft specifications, version 1, publish these standard dimensions in inches. Seat-specific exceptions and limited-recline seats are separate; actual dimensions may vary. This audit did not independently verify the legacy seat hardware, amenity descriptions or per-tail retrofit status.
United Premium Plus
- Pitch
- 38"published
- Width
- 19"published
- Seat
- Recliner
- Screen
- 13"
United's current aircraft specifications, version 1, publish these standard dimensions in inches. Seat-specific exceptions and limited-recline seats are separate; actual dimensions may vary. This audit did not independently verify the legacy seat hardware, amenity descriptions or per-tail retrofit status.
United Economy
- Pitch
- 31–34"published
- Width
- 17.3"published
- Seat
- Standard seat, Extra-legroom seat
United's current aircraft specifications, version 1, publish these standard dimensions in inches. Seat-specific exceptions and limited-recline seats are separate; actual dimensions may vary. This audit did not independently verify the legacy seat hardware, amenity descriptions or per-tail retrofit status.
Onboard facilities
Drawn on the interactive map above — hover a monument to confirm its position.
4 door pairs
Amenities
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.
Sources
Every measurement and claim on this page traces back to one of these. Last verified Jul 14, 2026.
- WikipediaINDEPENDENT SOURCERetrieved Jul 14, 2026
United Boeing 787-9 configurations: legacy 257 seats (48 Polaris / 21 Premium Plus / 39 Economy Plus / 149 Economy) and the "Elevated" 222-seat premium configuration; approximate fleet counts per configuration.
https://en.wikipedia.org/wiki/United_Airlines_fleet ↗ - United Airlines NewsroomPRIMARY SOURCERetrieved Jul 14, 2026
United Polaris business-class product: 1-2-1 lie-flat seats with direct aisle access, 180-degree flat bed measuring 6'6", and 16-inch HD entertainment screens (described for the 777-300ER; the same Polaris seat product is used on the legacy 787-9).
https://united.mediaroom.com/2017-07-03-United-Airlines-Introduces-Boeing-777-300ER-To-Additional-Routes ↗ - United Airlines NewsroomPRIMARY SOURCERetrieved Jul 14, 2026
United Premium Plus premium-economy cabin: individual power and USB outlets, amenity kit, noise-reducing headphones, enhanced meal service, more legroom/recline than Economy Plus.
https://united.mediaroom.com/2018-11-30-United-Airlines-Announces-Sale-Date-for-United-R-Premium-Plus-Airlines-Premium-Economy-Offering ↗ - United AirlinesPRIMARY SOURCERetrieved Sep 30, 2026
Aircraft-version product counts and published standard seat pitch, width and recline. Standard dimensions may vary by seat. Original map is separately archived.
Tables can contain inconsistent ranges/counts; image-based reconciliation is explained in configuration notes. Does not verify every legacy amenity, retrofit claim, fleet count or tail assignment.
https://www.united.com/en/us/fly/company/aircraft/boeing-787-9-dreamliner.html ↗ - United AirlinesPRIMARY SOURCERetrieved Sep 30, 2026
Airline-published map image: seat labels, skipped rows, seat columns, product coloring and monument/exit positions.
Schematic map does not establish physical window alignment or every hardware/amenity feature.
https://media.united.com/assets/m/6d72d9a9f884e8d2/original/787-9_SeatMap.png ↗ - United AirlinesPRIMARY SOURCERetrieved Sep 30, 2026
Complete rendered official aircraft page: every table cell, heading, explanatory main text and visible footnote retained for reprocessing and exact claim comparison.
Rendered DOM extraction, not raw HTTP HTML. Static page does not establish per-tail operations; table/image conflicts and limited audit scope remain in config notes.
https://www.united.com/en/us/fly/company/aircraft/boeing-787-9-dreamliner.html ↗
2026-09-30: Replaced the earlier count-derived synthetic grid with United's archived official map. Business1-12; Premium Plus20-22; Economy/Economy Plus30-35 and42-57. Row42 and43 contain side triples only; row56 and57 use2-3-2 rear taper. Mixed blue/white rows preserve the actual product assignment instead of treating Economy Plus as an invented contiguous cabin. Economy Plus is a zone in the shared economy cabin. Standard dimensions verified against the matching version. All physical window alignments remain unknown. Monument inventory omitted pending complete transcription; no unsourced adjacency flags survive the old synthetic grid. Legacy hardware/amenity claims and tail/fleet assignments remain partial. The earlier asserted January 2026 effective date and conversion/retrofit lineage are not established: United describes the Elevated aircraft as new deliveries. Both configurations remain available; no legacy airframes are silently retired. Published matching-version fixed-bassinet assignments: United Polaris® business class: 1A, 1L; United® Premium Plus: 20C, 20DEF, 20J; United Economy Plus®: 30C, 30DEF, 30J, 44DEF; United Economy®: No. These table assignments are documented here; per-seat adjacency warnings and full-row eligibility are not inferred. Any source letter/product conflicts retain their existing unresolved status.
What changed
- Oct 1, 2026Independent United source triage: version-bound power/USB/IFE, zero recline, exact staggered MAX8 labels and published exceptions, source-date/product wording qualification. Legacy inferred hardware, furniture and window uncertainty remain explicit. Qualify United outlet connector claims: generic availability remains prose, unsupported AC enum omitted, explicit wireless/StudioUSB-C preserved. No map, numbering, totals, coordinates or source archives changed.
- Sep 30, 2026Primary-source audit: updated published standard dimensions; reconstructed grid only where explicit archived airline image reconciliation is implemented. Remaining unverified scope documented in notes.
- 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.