Construction on a third concourse is set to be completed by 2025. The terminal has two concourses, each of which is outfitted with a moving walkway. This relaxed lifestyle also translates to travel through Jacksonville International Airport, which has a compact design that flows through a central courtyard before sending guests to its terminal. Covering about 840 square miles, Jacksonville may be the largest city in Florida by land mass but it has a laidback vibe that matches its tagline: “Jax: It’s Easier Here.”