<a href="https://www.flysair.com/flights-from-dallas-to-las-vegas">Flights from Dallas to Las Vegas</a> Las Vegas, also known as Vegas, is the 25th most populous US city, the largest city in Nevada and the county seat for Clark County. It is located in the heart of Las Vegas Valley and is the largest city within the greater Mojave Desert. Las Vegas is a popular resort city, which is well-known for its entertainment, fine dining, and gambling. Las Vegas Valley is Nevada’s largest financial, cultural, and commercial center.