Spirit Terminal FLL primarily operates out of Terminal 4 at Fort Lauderdale-Hollywood International Airport (FLL). The airport has a full range of services to make the journey smooth. New bookings and itinerary changes can be made at ticketing desks, and speedy check-in is enabled by self-service machines. Check-in, baggage drop-off, and tagging are managed by special Spirit staff. Baggage services provide support for lost, delayed, or damaged luggage. Throughout the terminal, there are live flight information displays on screens to keep travelers informed. Customer care is easily accessible, offering assistance through on-site representatives, a 24/7 text line, and a WhatsApp channel. Other amenities include charging points, seating areas, and food, which make Terminal 4 a convenient and traveler-friendly airport for Spirit travelers.

Check-in is simple at Spirit Fort Lauderdale but needs to be handled cautiously as a result of the carrier's strict rules related to timings. Travelers should plan their arrivals at least two hours ahead of their respective flights to make adequate time to attend to the check-in and security processes. Separate lines exist for online check-in and drop-offs, allowing streamlined processing to proceed for people opting for remote checking. They also provide regular check-in counters to customers who prefer to get assistance in person, e.g., families with young children, disabled passengers, or passengers whose journey plans are complicated.

Baggage handling at the Spirit Airlines FLL Terminal is accomplished, although the airline is popular for bare-bones. Separate sections close to the ticketing counters enable the payment for and inspection of luggage. Spirit Airlines is a fee-for-service operation, and travelers therefore must prepay or pay at the counter for carry-on and checked luggage as well. The agents help weigh out bags, stamp them in the appropriate places, and help passengers to the proper drop-off areas. With oversized or specialty items, like sports equipment or musical equipment, extra services are offered, though passengers are highly advised to check Spirit's baggage policies on the web before arriving at the airport to steer clear of surprise fees.

Flight details are easily visible across the Spirit Terminal Fort Lauderdale area of Terminal 4. Large, clear electronic display screens show minute-by-minute information about arrivals, departures, delays, and gate assignments. The display screens are placed above ticket counters, security checkpoints, and boarding gates, keeping travelers informed at each point along the way. Spirit Airlines also encourages the usage of their smartphone app, which sends real-time notifications, gate assignments, and boarding information to customers' mobile phones, a requirement in that the airline has made a considerable push into self-service and digital interaction.

Customer service at the Spirit Airlines Terminal Fort Lauderdale is designed to be efficient but convenient, consistent with the carrier's low-cost business model. Customer service areas are in the ticketing area as well as after security at the gates, where agents handle flight-related questions, rebooking because of cancellations or delays, and reporting lost bags. Employees are also trained to deal with any amount of delays at a moment's notice, keeping in mind that most Spirit travelers are not on long-lead time schedules. On very major delays and disruptions, Spirit Airlines usually sends notice to passengers via text or email and makes additional announcements over the PA system.