Flying Las Vegas → Seoul at the front of the plane
The journey from Las Vegas to Seoul is exactly the kind of flight First Class was designed for: long enough to sleep properly, dine unhurried, and land at Incheon International Airport (ICN) ready for the day.
Because no carrier flies true First Class nonstop on this pairing, the routing craft matters. ANA, Japan Airlines and Cathay Pacific each offer superb one-stop itineraries through their hubs — often at fares below what a nonstop business seat would cost, with a lounge stop that feels like part of the vacation.
Harry Reid International offers comfortable premium and club lounges, including strong contract facilities used by the international carriers, but no flagship First Class lounge. The elevated ground experience begins at your gateway — the Qantas First Lounge at LAX or the Emirates lounges on the coasts — which is another argument for the positioning strategy.
On timing: april brings cherry blossoms along the Han River and October sets the palaces against fall color — these are Seoul's two perfect months. May, June, and September are close behind. Late June through August is hot, humid, and punctuated by monsoon rain; winter is genuinely cold but crisp, with the city's food culture at its most warming and premium fares at their lowest.