Sit on the Left side of the plane for the best views on flights from Washington to Las Vegas. The left seat wins overall. The Washington DC departure view from the left is one of the most iconic urban aerial views in American aviation, with the monuments laid out clearly. The right seat wins on landing, but the takeoff spectacle is more dramatic and memorable. Left-seat passengers also track the southern Rockies and Mojave terrain better through the mid-flight portion heading southwest.

During takeoff from Ronald Reagan Washington National (DCA), sit on the Left side for the best views. DCA's primary departure runway is 01 (northbound) or 19 (southbound). Westbound flights to LAS typically depart runway 01, banking left (west) over the Potomac River. The left side gets the Washington Monument, Lincoln Memorial, and the Mall laid out clearly before the turn west. Notable sights include: Washington Monument and National Mall, Lincoln Memorial and Reflecting Pool, Potomac River bends, Arlington National Cemetery.

When landing at Mc Carran International (LAS), sit on the Right side for the best views. Las Vegas is served primarily by runways 26L/26R (westbound landings) or 01/19. Arrivals from the east typically land heading west on runway 26, putting the Las Vegas Strip on the right (north) side of the aircraft during final approach. The right seat gets a direct view down the Strip as the plane descends over the valley. Notable sights include: Las Vegas Strip casino corridor, Lake Mead to the northeast, Frenchman Mountain ridgeline, Spring Mountains (Charleston Peak) to the west.

The flight from Ronald Reagan Washington National (DCA) to Mc Carran International (LAS) takes Approximately 4 hours 30 minutes.

The flight tracks southwest over the Appalachian ridges of West Virginia, then across Kentucky and Tennessee briefly, before crossing the Mississippi River lowlands near Memphis. Over Arkansas and Oklahoma the terrain flattens into the southern Great Plains. Crossing into New Mexico, the Sangre de Cristo and Sacramento Mountains appear, followed by the broad Chihuahuan Desert basin. The Colorado Plateau and its canyon systems are visible in northern Arizona before descending toward the Mojave Desert and the Las Vegas Valley.