Is Spirit Airlines Safe considered one of the safest modes of transportation. All airlines, including Spirit Airlines, are required to adhere to strict safety standards, regular maintenance checks, and follow established safety procedures to ensure the safety of their passengers and crew. However, like any airline, Spirit Airlines has had incidents or accidents in the past, as is the case with most airlines worldwide. It's essential for passengers to stay informed about safety protocols and follow all instructions provided by the airline and its crew during the flight.