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Korean Air Boeing 777-300ER seat map — 291 seats

Boeing 777-300ER (291 seats: 8 First Kosmo Suites / 56 Prestige Sleeper / 227 Economy)
291 seats8F/56J/227YLast verified Jul 14, 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)
First Class (Kosmo Suites)First · 1-2-1Prestige Class (Prestige Sleeper)Business · 2-3-2Economy Class (New Economy)Economy · 3-4-3126789101112132122232425262728293031323334353637383940414243ADGKADGKACDEGHKACDEGHKACDEGHKACDEGHKACDEGHKACDEGHKACDEGHKACDEGHKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKABCDEFGHJKACDEFHK

Tap or hover a seat for its rating and details. On a phone, pinch to zoom and drag to pan.

At a glance
291 seats
Rating mix
66Good217Standard8Be aware
Best seats
  • Kosmo Suites: an open First Class flat-bed seat with large privacy partitions and window views.
  • Kosmo Suites: an open First Class flat-bed seat with large privacy partitions.
Seats to avoid
  • Prestige Sleeper centre seat of the 2-3-2 middle section — a neighbour must be passed to reach the aisle.
Worth knowing
  • 10 extra-legroom seats
  • 10 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.

Worth knowing

  • 6E, 7E, 8E, 9E, 10E, 11EPrestige Sleeper centre seat of the 2-3-2 middle section — a neighbour must be passed to reach the aisle.

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.

First Class (Kosmo Suites)

1-2-1Rows 1–28 seats

Best seats

  • 1A, 1K, 2A, 2KKosmo Suites: an open First Class flat-bed seat with large privacy partitions and window views.
  • 1D, 1G, 2D, 2GKosmo Suites: an open First Class flat-bed seat with large privacy partitions.

Prestige Class (Prestige Sleeper)

2-3-2Rows 6–1356 seats

Best seats

  • 6A, 6C, 6D, 6G, 6H, 6K, 7A, 7C, 7D, 7G, 7H, 7KPrestige Sleeper: a wide 2-3-2 business seat that reclines to an angled lie-flat position.

Seats to avoid

  • 6E, 7E, 8E, 9E, 10E, 11E, 12E, 13EPrestige Sleeper centre seat of the 2-3-2 middle section — a neighbour must be passed to reach the aisle.

Economy Class (New Economy)

3-4-3Rows 21–43227 seats

Best seats

  • 21A, 21B, 21C, 21D, 21E, 21F, 21G, 21H, 21J, 21KNew Economy bulkhead — extra legroom with no seat in front.
Worth knowing
  • 10 extra-legroom seats
  • 10 seats without under-seat storage

Frequently asked questions

How many seats does the Korean Air Boeing 777-300ER have?
This configuration has 291 seats: 8 First Class (Kosmo Suites), 56 Prestige Class (Prestige Sleeper), 227 Economy Class (New Economy).
What are the best seats on the Korean Air Boeing 777-300ER?
Top-rated in our data: 1A, 1K, 2A, 2K — Kosmo Suites: an open First Class flat-bed seat with large privacy partitions and window views; 1D, 1G, 2D, 2G — Kosmo Suites: an open First Class flat-bed seat with large privacy partitions.
Which seats should I avoid?
Flagged in our data: 6E, 7E, 8E, 9E, 10E, 11E, 12E, 13E — Prestige Sleeper centre seat of the 2-3-2 middle section — a neighbour must be passed to reach the aisle.
Does the Korean Air Boeing 777-300ER have lie-flat seats?
Yes — First Class (Kosmo Suites) has 8 seats that convert to a fully flat bed.

Cabins

First Class (Kosmo Suites)

8 seats · 1-2-1 · lie-flat
Pitch
83"published
Width
26.5"published
Seat
Lie-flat bed
Screen
23"
Power
USB-A

Korean Air publishes an 83 in (211 cm) pitch, 26.5 in (67 cm) width and a 201 cm (79 in) flat bed for Kosmo Suites.

Prestige Class (Prestige Sleeper)

56 seats · 2-3-2
Seat
Angled lie-flat
Power
USB-A

Economy Class (New Economy)

227 seats · 3-4-3
Pitch
33.5"published
Width
18.1"published
Seat
Standard seat
Screen
11.1"
Power
USB-A

Korean Air publishes 33-34 in (84-86 cm) pitch, 18.1 in (46 cm) width and a 118-degree recline for New Economy.

Amenities

Entertainment
Seatback screens
Personal seat-back monitors in every cabin (Kosmo Suites 23 in, New Economy 11.1 in per Korean Air cabin pages; Prestige Sleeper screen size not published on retrievable pages).
Power
USB-A
Korean Air's 777-300ER cabin pages list a USB charging port in every cabin; AC power availability is not stated on those pages.

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.

Korean Air Boeing 777-300ER seat map diagram — First Class (Kosmo Suites), Prestige Class (Prestige Sleeper), Economy Class (New Economy) (291 seats)

Download PNG

Provenance

Sources

Every measurement and claim on this page traces back to one of these. Last verified Jul 14, 2026.

  • Korean AirPRIMARY SOURCERetrieved Jul 14, 2026

    Kosmo Suites First Class product and dimensions (83-in/211 cm pitch, 26.5-in/67 cm width, 201 cm flat bed, 23-in monitor, USB) for the 777-300ER; aircraft menu lists the 291-seat 777-300ER config.

    Fetched via the Wayback Machine (2021-02-05 snapshot); the live page is bot-blocked. Describes products/dimensions, not a per-cabin count or row grid.

    https://www.koreanair.com/mm/en/in-flight/aircraft/b777/300er-291/first
  • Korean AirPRIMARY SOURCERetrieved Jul 14, 2026

    New Economy seat product and dimensions (3-4-3, 33-34 in pitch, 18.1 in width, 118-degree recline, 11.1-in monitor, USB) — the same New Economy product used in the 291-seat config.

    Fetched via the Wayback Machine (2021-02-06 snapshot); the live page is bot-blocked. Economy product is shared across both 777-300ER configs.

    https://www.koreanair.com/mm/en/in-flight/aircraft/b777/300er-277/economy
  • WikipediaINDEPENDENT SOURCERetrieved Jul 14, 2026

    Korean Air fleet table: 777-300ER in two configs — Kosmo Suites 8 / Prestige Sleeper 56 / Economy 227 = 291, and Kosmo Suites 2.0 8 / Prestige Suites 42 / Economy 227 = 277; 25 aircraft in service.

    Per-cabin counts and First/Business product names; does not give a row grid.

    https://en.wikipedia.org/wiki/Korean_Air#Fleet
How this map was built

Korean Air's older-product three-cabin Boeing 777-300ER. Korean Air (koreanair.com) PUBLISHES the config total ("777-300ER (291 Seats)" in the aircraft menu) and the First and Economy products/dimensions: Kosmo Suites (open First flat-bed, 83-in/211 cm pitch, 26.5-in/67 cm width, 201 cm/79-in bed, 23-in monitor, USB) and New Economy (3-4-3, 33-34 in/84-86 cm pitch, 18.1 in/46 cm width, 118-degree recline, 11.1-in monitor, USB; same product as the 277 config). The per-cabin SEAT COUNTS (8 First / 56 Prestige / 227 Economy) and the Business product name (Prestige Sleeper) come from the current Wikipedia Korean Air fleet table (neutral), which lists this 777-300ER config as Kosmo Suites 8 / Prestige Sleeper 56 / Economy 227 = 291 among 25 in-service 777-300ERs. Korean Air does NOT publish a retrievable row grid or schematic, so row numbering, column letters, cabin boundaries and the rear taper are DERIVED from the published counts and standard 777-300ER geometry: First rows 1-2 (1-2-1 = 8); Prestige Sleeper rows 6-13 (2-3-2 = 7 abreast x 8 rows = 56); New Economy rows 21-43 (3-4-3: bulkhead row 21, standard rows 22-42 = 210, tapered 7-seat last row 43 = 227). Prestige Sleeper numeric pitch/width/screen are NOT published on Korean Air's retrievable cabin pages (that dimension page is not archived) and are omitted rather than estimated; its 2-3-2 abreast follows the older Korean Air long-haul business layout and reconciles the 56-seat count exactly (8 x 7). The 2-3-2 centre seats (column E) are flagged no_direct_aisle_access. Exit-row and door/galley positions are NOT modelled. windowAlignment is left "unknown" on all window seats (derived grid). Power modelled as USB-A per the cabin pages; AC not stated. This 291-seat layout uses Korean Air's older First/Business products; the sister config ke-77w-277 uses the newer Kosmo Suites 2.0 / Prestige Suites products.

What changed

  1. Jul 14, 2026Initial Korean Air 777-300ER 291-seat config (8F Kosmo Suites / 56J Prestige Sleeper / 227Y New Economy). First/Economy products/dimensions from koreanair.com (Wayback); counts and Business product name from Wikipedia; grid derived from standard 777-300ER geometry.