The First Class picture from Seattle
Seattle's standout First Class departure is Emirates to Dubai — Boeing 777 service with First suites, including the newest fully enclosed suites on select aircraft. It gives the Pacific Northwest a nonstop line to the Gulf and one-stop First Class access to the Maldives, India, and Southeast Asia. Lufthansa connects Sea-Tac to Frankfurt and British Airways to London; both carriers deploy First cabins on these routes in select seasons, with aircraft assignments that shift through the year.
For Asia — a natural direction of travel from Seattle — the honest answer is that the local nonstops are business-class products, excellent but not First. Travelers wanting ANA, Japan Airlines, or Cathay Pacific First typically position to Los Angeles or San Francisco on a short domestic flight, or route via Dubai on Emirates. Given Seattle's compact, efficient airport and strong Alaska Airlines feed from across the West, either strategy adds little friction to an otherwise seamless journey.
Lounges & ground experience
Sea-Tac's international premium facilities are comfortable and continually improving: Emirates First passengers are hosted in a premium lounge before the Dubai departure, and the European flagships provide elevated partner lounge access. The airport's manageable scale is itself a luxury — check-in to gate rarely takes long, even at peak hours.