If you’re flying with Alaska Airlines at Las Vegas’ Harry Reid International Airport (LAS), it’s important to know that the airline operates from Terminal 1. Terminal 1 primarily serves domestic flights and is where you’ll find Alaska Airlines’ check-in counters, baggage drop, and customer service desks. When you arrive at the airport, simply follow the signs directing you to Terminal 1 to easily locate Alaska Airlines. After checking in, you’ll proceed through security, which can get busy during peak hours, so arriving early is always a good idea.