Spirit Airlines boards passengers in groups called zones, from Zone 1 to Zone 4. Your zone depends on your seat, if you paid for extras, or where you're sitting on the plane.
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Delta Airlines flies out of Terminal A at Boston Logan International Airport. The terminal is clean, modern, and easy to navigate, with helpful staff and quick check-in options. Travelers can enjoy food, shops, and free Wi-Fi while waiting for their flight. It’s a smooth and comfortable start to your journey with Delta.
https://airlineterminalservice.....com/delta-airlines/