McCarran International Airport
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Location: Las Vegas, Nevada
Airport Code: LAS
Although Las Vegas' glitzy casinos are close by, travelers need not leave the McCarran International Airport to gamble, as there are more than 1,300 slot machines available right inside the terminals. Airlines that serve LAS include low-cost carriers like Southwest and Spirit, as well as United, American, and Delta.
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Phoenix Sky Harbor International Airport
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Location: Phoenix, Arizona
Airport Code: PHX
Serving Phoenix and the greater Southwest area, Phoenix Sky Harbor has 100 gates across two terminals (Terminal 3 and 4). It's also known to be an extremely friendly airport thanks to its stellar customer service. The main airlines here are American Airlines, Delta, and Southwest.