United Airlines Las Vegas Terminal Serving mostly United's domestic and international flights, this terminal provides a number of facilities to passengers, such as free Wi-Fi, duty-free shopping, and food options. With contemporary check-in counters, kiosks, and security checkpoints, the terminal is roomy and well-designed to accommodate high passenger volumes. In addition, passengers flying to different locations in the US and overseas can make easy connections thanks to United's operations in Terminal 3.