The Southwest Airlines terminal at Honolulu International Airport (HNL) is Terminal 1. As you arrive at HNL, you'll find yourself in a vibrant and well-organized terminal that caters to Southwest Airlines passengers. From the moment you step foot inside, you'll experience the friendly and efficient service that Southwest Airlines is known for. Whether you're checking in, going through security, or waiting at the gate, the Southwest HNL terminal offers a comfortable and convenient travel experience.