Seattle-Tacoma International Airport (SEA) has a lot going on these days. We’ve got a new, “secret” security checkpoint (checkpoint 1, down by international arrivals) that is rarely busy and has Clear and TSA Pre-Check Touchless ID. We’ve got a new departures hall for Alaska that just debuted after what seemed like endless construction. And we’ve got exciting new flight routes launching in 2026.
One of those flights is nonstop service between Seattle and Hong Kong on Cathay Pacific. Technically this is a relaunch of a route Cathay Pacific ran pre-Covid, but it’s just as exciting nonetheless. Service begins March 30, 2026.
Most exciting of all is that Cathay Pacific is advertising limited-time “launch fares” from Seattle to Hong Kong — and to more than 65 destinations across its wider network via Hong Kong — with lead-in prices starting at $647 across Economy, Premium Economy and Business cabins. Blackout dates and other restrictions apply. You can only book these fares from now until March 31, 2026 at 11:59 pm PST.
Seattle doesn’t have a lot of Airbuses flying through it, but this route will run Cathay’s Airbus A350-900 with lie-flat beds in business class, enhanced comfort in Premium Economy and spacious seating in Economy — which was voted best in the world by Skytrax — plus the carrier’s award-winning inflight entertainment.
If you’re a Seattle-area traveler who’s been waiting for a truly premium nonstop to Asia to come back, this is one worth circling — especially if your ideal trip is either spring break timing or a fall getaway (those are the strongest windows in the promo calendar).
Sale dates and what’s included
Sales period: Feb. 2 to March 31, 2026 (through 11:59 p.m. Pacific time)
Lowest lead-in fares: from $647
Cabins: Economy, Premium Economy and Business
Aircraft: Airbus A350-900
Heads up: fares apply only to flights open for sale at booking; terms and conditions apply; blackout dates apply.
Extra perk for cardholders
Cathay World Elite Mastercard holders can receive up to 15% off select fare classes when purchasing with their card.
Travel windows by destination and cabin
Below is the fine print, simplified so you can quickly see if your dates fit.
Economy and Premium Economy
To Hong Kong
- March 30 to May 23, 2026
- Aug. 1 to Dec. 7, 2026
To the Chinese mainland
- March 30 to May 13, 2026
- Aug. 3 to Nov. 30, 2026
- Dec. 25 to Dec. 31, 2026
To other destinations (via Hong Kong)
- March 30 to May 13, 2026
- Aug. 3 to Nov. 30, 2026
Blackout dates (Economy and Premium Economy)
- Not valid for departures to Hong Kong: May 24 to July 31, 2026
- Not valid for departures to other destinations: May 24 to Aug. 2, 2026
Business class
To all destinations
- Departures on/after March 30, 2026
- No blackout dates
Wanderlux take: who this works for
- Families and school-calendar travelers: The late March start and the August-to-early-December window align nicely with spring break and fall extra-long weekends (or Thanksgiving-adjacent travel if you can swing shoulder dates).
- Comfort seekers who don’t want to connect multiple times: A nonstop to Hong Kong is a big quality-of-life upgrade if you’re connecting onward to Asia.
- Premium cabin fans: The A350-900 plus lie-flat Business Class makes this route a strong contender.
While we haven’t (yet) flown Cathay Pacific’s business class, these business and first class flight reviews may be helpful if you’re deciding between cabin classes:
- See what a modern premium cabin feels like on a nonstop long-haul in our Delta One London to Seattle review.
- Or, if you’re curious what true top-tier service looks like departing Seattle, read our Emirates First Class Seattle to Dubai review.
Know before you book
- Be flexible by a few days if you can — “from $647” typically means limited seat inventory at the very lowest fare. Pick “my dates are flexible” if they are at all flexible.
- Double-check blackout periods if you’re planning summer travel, especially late May through July.
- Read the fare rules before booking if you care about changes, upgrades or refunds (the “select fare classes” language matters).
