Sơ đồ chỗ ngồi Korean Air Boeing 787-9

Korean Air Boeing 787-9, 278-seat configuration (24 Prestige Suite / 254 Economy) — a denser Economy sub-fleet distinct from the 269-seat config, published as a separate current 787-9 on koreanair.com. Built from Korean Air’s official English seat-map diagram (fl-787-278-seatmap-pc.png), the AEM seat-map model (9-278/seat-map.model.json) and the Prestige Class page. PRESTIGE: identical fully lie-flat "Prestige Suite" (Apex) staggered 2-2-2 (columns A,B / D,E / H,J), numbered rows 7, 8, 9, 10 on the published map = 24; 190 cm (75 in) pitch, 53 cm (21 in) width, 180° recline, 17-inch monitor; 10J is a pet (PETC) seat. ECONOMY: 3-3-3 (columns A,B,C / D,E,F / G,H,J), rows 28–57, at the tighter 81 cm (32 in) pitch; +9 seats vs the 269-seat config coming from fuller rear rows (rows 55, 56 are full 3-3-3 and row 57 seats seven). Structure mirrors the 269 config: row 28 centre bulkhead (bassinet, 28E accessible), rows 29–32 preferred/front block (29 side seats bulkhead extra-legroom, 30–32 the 26 paid preferred, accessible seats 29E/29F/31E/31F), row 43 centre lavatories, row 44 exit row behind Door 3 (44B/44H legroom), row 45 bulkhead behind the mid galley (bassinet); row 57 = B–H (A/J absent) tapering to the rear. 55A/55J are pet (PETC) seats. DERIVATIONS / RECONCILIATION (layoutProvenance "mixed", AUTHORING §5b): as on the 269 config, the schematic depicts roughly three more Economy positions than Korean Air’s authoritative accommodation count of 254 (same "may differ from the actual aircraft" disclaimer); the explicit 254 Economy / 278 total wins and the front-bulkhead centre positions at row 28 are reconciled to centre-only (D,E,F), giving exactly 254 and a grid consistent with the 269 config and with the model’s 26-preferred / 5-accessible seat counts. Economy recline and monitor size are not published (omitted); window alignment "unknown" for window seats (top-down schematic).