Business class flights from Seattle (SEA) to Kaohsiung (KHH) start from $2,450 round-trip — up to 40% below published airline prices. The ~13 hours journey covers , with 3 airlines offering lie-flat seats on this route. Best time to book: 3–6 months in advance for best fares.
SEA → KHH
Seattle to Kaohsiung Business Class
From$2,450
Route Overview
Starting From
$2,450 round-trip
Flight Duration
~13 hours
Airlines
3 carriers
Best Value
Jan, Feb, Mar
Savings
Up to 60% off retail
Route Intelligence
Business Class from Seattle to Kaohsiung
There's no nonstop from Seattle to Kaohsiung, so every itinerary routes through either Tokyo, Seoul, or occasionally another Asian gateway. That's actually good news for business class travelers, because it means Seattle to Kaohsiung business class comes with a proper connection-hub experience — a lounge stop, a cabin change on some routings, and the chance to sample two carriers' service instead of just one on a long haul. Kaohsiung itself is Taiwan's southern port city, a working harbor town with a very different feel from Taipei: less crowded, more laid-back, with the Lotus Pond temples, the Pier-2 art district, and some of the best night market food in the country. It's a common stop for business travelers tied to Taiwan's shipping and electronics manufacturing sector, and increasingly for families visiting relatives who prefer flying direct into the south rather than connecting again from Taipei.
Airlines & Cabin Experience
The three main options for Seattle to Kaohsiung business class are ANA, JAL, and Asiana, each routing through their home hub. ANA connects via Tokyo Narita or Haneda, and their Business Staggered seat is one of the better products in the sky right now — a true 1-2-1 lie-flat with staggered positioning so every seat has direct aisle access, paired with kaiseki-style multi-course meals that are genuinely a highlight of the flight rather than an afterthought. JAL runs a similar Tokyo connection with their Sky Suite cabin, a herringbone 1-2-1 lie-flat that's slightly more private in feel, and if your routing includes a Haneda layover you get access to the Sakura Lounge, which is one of the calmer lounges in that airport. Asiana connects through Seoul Incheon with their Smartium business cabin, also lie-flat 1-2-1, and tends to run a bit more competitively priced than the Japanese carriers while still delivering solid Korean hospitality and a functional, well-run hub connection.
Pricing & Best Time to Fly
Our fares on this route run $2,450 to $6,800 round-trip, and where you land in that range depends heavily on how far out you book and which shoulder-season window you target. January through April and October through November are the sweet spot — you avoid the Lunar New Year crunch (unless you're deliberately targeting it, which pushes fares up sharply) and you skip peak summer demand when Taiwanese diaspora travel spikes. Booking 3-4 months ahead of these windows tends to land the better fares, since business class award and discount inventory on the Tokyo and Seoul legs gets tight closer to departure.
Why Book Through BestBusinessClass.com
On the ground, expect connection times in the 2-3 hour range depending on routing, which is comfortable but not so long that you're stuck killing time. The Tokyo and Seoul legs are typically the longer of the two segments, with the final hop down to Kaohsiung being a shorter regional flight — sometimes on a smaller narrow-body configuration, so don't expect the same seat on both legs of a JAL or ANA itinerary. It's worth asking your travel manager to confirm cabin type on both segments before booking, since the marketing photos usually show the long-haul seat, not the connector. Because these are consolidator fares, we're often able to secure lie-flat seating on both legs where public fares would bump you to premium economy on the shorter connection — that's one of the practical advantages of booking through an agency with wholesale access rather than a standard search engine.
Airline Comparison
ANA (All Nippon Airways)
ANA Business Staggered
Lie-flat staggered, 1-2-1
Japanese hospitality, multi-course kaiseki meals
Japan Airlines
JAL Sky Suite
Lie-flat herringbone, 1-2-1
Japanese precision, Sakura Lounge
Read Full Review →
Asiana Airlines
Business Smartium
Lie-flat, 1-2-1
Korean service, Seoul hub
Read Full Review →Top Rated
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The Business Class Standard
Lie-Flat Guarantee
We only sell true Business Class. 180° fully flat beds on all long-haul routes, ensuring you arrive rested.
Premium Lounges
Access the world's finest lounges. Enjoy pre-flight dining, showers, and quiet workspaces before you board.
Priority Service
Skip the queues. Your ticket includes fast-track security, priority boarding, and premium baggage handling.
The Business Class Standard
Lie-Flat Guarantee
We only sell true Business Class. 180° fully flat beds on all long-haul routes, ensuring you arrive rested.
Premium Lounges
Access the world's finest lounges. Enjoy pre-flight dining, showers, and quiet workspaces before you board.
Priority Service
Skip the queues. Your ticket includes fast-track security, priority boarding, and premium baggage handling.
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