Head-to-head · 2026

Korean Air vs Asiana

Korean Air Prestige Suites (Prestige Suites 2.0 on the 787-10 adds sliding doors, kept open in flight for now) versus Asiana Business Smartium (staggered 1-2-1 on the A380 and A350). Both operate daily US-Seoul Business Class until Asiana merges into Korean Air on December 17, 2026. Here is how they compare for cabin, food, lounge access, and mileage value.

Updated October 7, 2026

Quick answer

Should I fly Korean Air or Asiana Business Class?

Korean Air Prestige Suites 2.0 on the 787-10 and refitted 777-300ERs is the newer hard product (1-2-1 lie-flat with sliding doors, kept open in flight pending regulatory approval), and the original Prestige Suites gives every seat direct aisle access. Asiana flies staggered 1-2-1 Business Smartium on its A380 and A350 US routes; some older 777s keep a 2-2-2 angle-flat cabin. Asiana leaves Star Alliance on December 16, 2026 and merges into Korean Air on December 17, 2026, so Korean Air is the safer pick for cabin consistency and lounge access; the Asiana A380 on LAX remains solid until then for travelers who prefer the upper-deck experience.

Korean Air: Prestige Suites 2.0 on 787-10 + refitted 777-300ER
Asiana: Business Smartium (staggered 1-2-1) on A380 + A350
Asiana merges into Korean Air on December 17, 2026
Korean Air is SkyTeam; Asiana leaves Star Alliance Dec 16, 2026

Illustration: Korean Air and Asiana Airlines Business Class cabins side by side — Illustration, not a photo of the actual cabin.

Side-by-side comparison

Feature	Edge	Korean Air	Asiana
Business cabin (best variant)	Tie	Prestige Suites 2.0: 1-2-1 lie-flat, sliding door (open in flight for now)	Business Smartium: staggered 1-2-1 lie-flat, no door
Cabin on older fleet	Tie	A380 + some 777s: Prestige Sleeper 2-2-2 (window seats lack aisle access)	Some older 777s: 2-2-2 angle-flat (avoid)
US gateways for Korea	Korean Air	JFK, BOS, IAD, ATL, ORD, DFW, LAS, LAX, SFO, SEA, HNL (11)	JFK, LAX, SFO, HNL (A380 + A350; SEA moves to Korean Air Oct 12, 2026)
Bed length / width	Tie	About 78 inches / 21 inches (Prestige Suites 2.0)	77 inches / 22 inches (A350 Smartium)
Lounge at Incheon (ICN)	Korean Air	Korean Air Prestige Lounges, Terminal 2 (renovated 2025-2026)	Asiana Business Lounge (older)
Food + wine	Tie	Korean-Western dual menus; full bar	Korean-Western dual menus; A380 has full bar
Typical consolidator fare LAX-ICN	Korean Air	$3,000-$4,400 round-trip	$3,200-$4,600 round-trip
Mileage program	Korean Air	Korean Air SKYPASS (no major US bank transfer partner)	Asiana Club (moves into SKYPASS on Dec 17, 2026)
AAdvantage redemption	Tie	No (SkyTeam); use Delta SkyMiles, Flying Blue or Virgin Atlantic	No (Star Alliance until Dec 16, 2026); use Aeroplan or United
Future fleet outlook (Korean Air + Asiana merger)	Korean Air	Korean Air is the surviving brand from December 17, 2026	Asiana brand ends December 17, 2026; flights move to Korean Air

Which to pick when

Pick Korean Air for cabin consistency

Prestige Suites 2.0 flies the 787-10 to San Francisco and Seattle, and the original Prestige Suites (direct aisle access, no door) is on the 747-8I, 787-9 and many 777-300ERs. The A380 and some older 777s still have the Prestige Sleeper seat, so check the aircraft on your quote.

Pick Asiana A380 for the upper-deck Business experience

Until the merger, Asiana flies its A380 on one daily LAX-ICN rotation (Asiana JFK-ICN uses the A350 from October 25, 2026). The upper-deck Business Smartium cabin has a 22-inch seat and the quiet A380 ride. Korean Air also flies the A380 to JFK, but with the older Prestige Sleeper seat.

Pick Korean Air for the schedule + US gateway coverage

Korean Air flies non-stop from 11 US gateways; Asiana from 4. If you live outside the major coastal cities, Korean Air is often the only direct Business Class option to Seoul.

Avoid Asiana older 777 (2-2-2 angle-flat)

Some older Asiana 777s keep the 2-2-2 angle-flat Business cabin, where window seats have no direct aisle access. Asiana US flights use the A380 or A350, so this mostly matters on connections through Seoul. Verify aircraft on the quote.

Pick whichever is cheaper through a consolidator

Both have similar contracted-fare access through consolidators. Typical LAX-ICN Business consolidator pricing: Korean Air $3,000-$4,400, Asiana $3,200-$4,600. Korean Air is usually $200-400 cheaper. Get written quotes on both for your exact dates.

The merger context

Korean Air closed its Asiana acquisition in December 2024, Korean Air's board and Asiana's shareholders approved the merger on August 12, 2026, and Asiana merges into Korean Air on December 17, 2026. The practical effect for US travelers: Korean Air is the surviving brand, and Asiana leaves Star Alliance on December 16, 2026.

For late-2026 bookings: Asiana keeps flying its A380 to LAX and the A350 to JFK and SFO until the merger, and its Seattle flight moves to Korean Air from October 12, 2026. Any Asiana ticket for travel after December 16, 2026 flies as Korean Air, often on Korean Air aircraft, with SkyTeam rather than Star Alliance benefits.

Cabin: where Korean Air pulls ahead

Korean Air Prestige Suites 2.0 (the 787-10 and refitted 777-300ER Business cabin) is 1-2-1 lie-flat with direct aisle access for every seat and 130cm sliding doors, though the doors have stayed open in flight pending regulatory approval. Bed length about 78 inches, width 21 inches, full Korean Air bedding. The original Prestige Suites on the 747-8I, 787-9 and many 777-300ERs also gives every seat direct aisle access, without a door.

Asiana Business varies meaningfully by aircraft. Business Smartium on the A380 and A350 is a staggered 1-2-1 lie-flat seat with no door (about 77 inches of bed, 22 inches of width), competitive with good Asian Business products. Some older 777s retain a 2-2-2 angle-flat cabin, which lacks direct aisle access for window seats. The cabin variance is the main case for Korean Air consistency.

Mileage value + redemption strategy

Korean Air is SkyTeam; Asiana is Star Alliance until December 16, 2026. Korean Air SKYPASS is the home program for Korean Air metal awards; it charges 62,500 miles one-way off-peak (92,500 peak) for US-ICN Prestige, plus taxes. There is no major US transfer partner: Chase Ultimate Rewards left in 2018 and Marriott Bonvoy in June 2024.

For accessible US miles to Korean Air, Delta SkyMiles (SkyTeam) books Korean Air at dynamic prices. Virgin Atlantic Flying Club also redeems Korean Air at 85,000 points one-way from the West Coast (100,000 from most other US gateways) plus taxes, one of the better Virgin Atlantic redemptions on Asian metal.

For Asiana: Star Alliance programs such as Aeroplan and United MileagePlus can book Asiana only for travel through December 16, 2026. On December 17, 2026, Asiana Club balances move into SKYPASS as a separate balance usable for 10 years; converting to SKYPASS is 1:1 for flight-earned miles and 1:0.82 for partner-earned miles. AAdvantage cannot book either airline.

Frequently asked

Is Korean Air or Asiana Business Class better for US to Seoul?

Korean Air for cabin consistency and post-merger certainty. Korean Air Prestige Suites give every seat direct aisle access, and Prestige Suites 2.0 on the 787-10 adds sliding doors that currently stay open in flight. Asiana Business Smartium on the A380 and A350 is a competitive staggered 1-2-1 seat, while its older 777 cabin (2-2-2 angle-flat, no direct aisle access for window seats) is meaningfully worse. Asiana merges into Korean Air on December 17, 2026.

How much does Korean Air or Asiana Business Class cost from the US?

Through a consolidator in shoulder season: LAX-ICN Business round-trip typically $3,000-$4,400 on Korean Air, $3,200-$4,600 on Asiana A380. JFK-ICN runs $3,400-$5,200 on Korean Air, $3,600-$5,400 on Asiana. SEA-ICN at $3,000-$4,400 on Korean Air is often the cheapest US-Korea Business. Both prices are 30-50% below the published fares on koreanair.com or flyasiana.com.

Will the Korean Air + Asiana merger change my booking?

Yes, if you fly after December 16, 2026. Asiana leaves Star Alliance on December 16 and merges into Korean Air on December 17, 2026, so later Asiana tickets fly as Korean Air, sometimes on Korean Air aircraft, with SkyTeam rather than Star Alliance benefits. Aeroplan award tickets on Asiana for travel after December 16 are not honored. Verify the operating aircraft with the consolidator before you ticket.

Which has better lounges at Incheon (ICN)?

Korean Air. Its Prestige Lounges at Incheon Terminal 2 were renovated in phases from August 2025 to April 2026 and are among the strongest Asian Business lounges (hot Korean + Western food, full bar, shower suites, separate quiet area). Asiana Business Lounge is older and less refined. SkyTeam Elite Plus members can use the Korean Air lounges; Asiana lounge access follows Star Alliance rules until December 16, 2026.

Can I redeem AAdvantage miles on Korean Air or Asiana Business?

No. Korean Air is SkyTeam and Asiana is Star Alliance until December 16, 2026; neither is Oneworld, so AAdvantage cannot be used on either. For Korean Air Business: Delta SkyMiles, Flying Blue, or Virgin Atlantic Flying Club (85,000 points one-way from the West Coast). For Asiana through December 16, 2026: Aeroplan or United MileagePlus.

Should I take Korean Air via Incheon for onward Asia connections?

Yes, Incheon is one of the strongest Asia hubs. Korean Air operates 60+ destinations from ICN with same-day Business Class connections to Bangkok, Manila, Singapore, Hong Kong, Hanoi, and most major Asian capitals. For US-onward-to-Southeast-Asia, Korean Air via ICN is competitive with Cathay via HKG or Singapore Airlines via SIN, often cheaper through a consolidator.

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