Sit on the Left side of the plane for the best views on flights from Seattle to Las Vegas. The left side wins overall due to the spectacular Mount Rainier and Cascade views on departure, which are among the most dramatic mountain views available from any US domestic route. Mid-flight the left side also tracks closer to the Oregon Cascades including Mount Hood. The right side has the edge only on landing approach.

During takeoff from Seattle Tacoma International (SEA), sit on the Left side for the best views. SEA's primary departure runway 16L/16R sends aircraft southbound, putting the left side facing east toward the Cascade Range. You get a clear view of Mount Rainier dominating the skyline, with the Seattle metro and Lake Washington visible during the initial climb. Notable sights include: Mount Rainier, Lake Washington, Seattle city center, Cascade Range foothills.

When landing at Mc Carran International (LAS), sit on the Right side for the best views. Las Vegas McCarran typically uses runways 26L/26R or 19R for arrivals, with approaches from the east or north. The right side faces north and west, giving you the Las Vegas Strip laid out clearly below during the descent, along with the Spring Mountains and Red Rock Canyon escarpment to the west. Notable sights include: Las Vegas Strip, Spring Mountains (Charleston Peak), Red Rock Canyon escarpment, Lake Mead.

The flight from Seattle Tacoma International (SEA) to Mc Carran International (LAS) takes Approximately 2 hours 30 minutes.

The flight crosses the Oregon Cascades including Mount Hood and the Three Sisters volcanic peaks, then transitions into the high desert of the Columbia Plateau and Great Basin. Over northern Nevada the terrain becomes a series of parallel north-south mountain ranges separated by dry valleys, typical Basin and Range topography. The route passes east of the Sierra Nevada before descending into the Mojave Desert toward Las Vegas.