Lie-flat into Incheon on Korean Air, Delta and their partners — quoted below the published fare.
Business class to Seoul, South Korea lands at Incheon International (ICN), the purpose-built hub about an hour west of the city, routinely ranked among the world’s best airports. Every long-haul premium cabin comes through Incheon; Gimpo handles domestic and short regional hops.
The market is mid-reshuffle: Korean Air completed its takeover of Asiana in late 2024, and the two are gradually combining into one SkyTeam giant. Meanwhile both brands still sell seats, Delta flies its own metal in a joint venture with Korean Air, and United and American add their own nonstops — competition that keeps Incheon business fares negotiable.
48 origin airports with nonstop service to Seoul
Seoul is served by ICN
Biirdee's negotiated fares typically land 30–70% below published business class prices
The largest U.S.–Seoul schedule; consistent Prestige class with new suite-style cabins arriving.
Still selling under its own brand while the Korean Air merger completes; solid lie-flat business.
Joint venture with Korean Air; Delta One from Atlanta, Detroit, Minneapolis and Seattle.
Polaris nonstop from San Francisco, with Star Alliance connections beyond.
Flagship Business nonstop from Dallas–Fort Worth — the main oneworld option into Incheon.
Typical published round-trip business class ranges. Biirdee's sourced fares come in below these — request a quote for live pricing on your dates.
| Route | Typical published fare | Notes |
|---|---|---|
| From the U.S. West Coast | $3,800–$6,800 round trip | Retail as of August 2026 on 11–13 hour nonstops from LAX, SFO and Seattle. |
| From the U.S. Midwest and South | $4,200–$7,800 round trip | Nonstops from Atlanta, Detroit, Minneapolis and Dallas–Fort Worth. |
| From the U.S. East Coast | $4,500–$8,200 round trip | Korean Air’s New York nonstop plus one-stop routings; connecting via the West Coast can price lower. |
Seoul peaks in the summer holidays, around Chuseok (September–October, dates shift yearly) and over Lunar New Year. Spring and fall bring the best weather and steady demand, so book three to five months ahead for those. January–February outside Lunar New Year is the softest window, with the lowest fares.
Pick your departure city for route-specific fares, airlines and flight times.
Business class from Paris, France
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As of August 2026, retail round trips run about $3,800–$6,800 from the U.S. West Coast and $4,200–$8,200 from the rest of the country. Biirdee sources fares below retail.
Korean Air, Asiana, Delta, United and American all fly lie-flat business class nonstop from the U.S. to Seoul Incheon (ICN), with one-stop options via Tokyo, Taipei and other Asian hubs.
Korean Air acquired Asiana in late 2024 and the brands are merging over the next few years. For now Asiana still sells under its own name and remains a legitimate business class option.
January–February outside Lunar New Year, plus late fall after Chuseok. Summer and the Korean holiday periods are the most expensive in the business cabin.
Biirdee · Flight Concierge
Tell us your dates and departure city — the desk prices Seoul across every airline and unpublished-fare channel, usually within the hour.
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