Flying Las Vegas → Abu Dhabi at the front of the plane
Booked well, Las Vegas to Abu Dhabi in First Class is not an indulgence so much as arithmetic: a flat bed out of Harry Reid International Airport (LAS), hours of genuine sleep, and a first day in Abu Dhabi you don't lose to recovery.
The absence of a nonstop First Class product here is an opportunity in disguise: a one-stop on Etihad Airways, Qatar Airways and British Airways adds a world-class lounge visit mid-journey and frequently prices better than direct premium alternatives.
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.
October through April is Abu Dhabi's season — warm, dry, and built for the Corniche, the Louvre outpost, and Grand Prix week in late November, when fares spike hardest. Summer is brutally hot and correspondingly cheap; shoulder months (May, September) balance weather and negotiated-fare availability well.
Planning beyond this pairing? The complete First Class flights to Abu Dhabi guide covers every airline, season, and fare band for this destination, and the First Class from Las Vegas guide maps every route from your airport.