What Terminal is Spirit Airlines At BOS | If your Spirit Airlines flight from Terminal B at Boston Logan Airport is delayed, locate a quiet seat or explore the terminal's less busy sections. Bring a power bank to keep your electronics charged because outlets are restricted. Stock up on snacks or get a quick bite at neighbouring kiosks, then utilise Logan Airport's free Wi-Fi to watch films or catch up on work. Stretch your legs by walking around the terminal and staying up to date on flight changes using the Spirit Airlines app or airport monitors. Delays do not have to ruin your trip; be prepared and make the most of your time at BOS!