Overall, the aviation industry prioritizes safety, and Frontier Airlines is indeed a safe and reliable airline. The airline holds the necessary certifications for safety, including the FAA and IATA safety certificates, which further establish its commitment to maintaining high safety standards.

In 2023, Frontier Airlines maintains a solid safety record that is consistent with major US-based carriers. Like all commercial airlines operating in the United States, Frontier is subject to the rigorous safety standards and oversight of the Federal Aviation Administration (FAA) and the National Transportation Safety Board (NTSB). While Frontier is a "Ultra Low-Cost Carrier" (ULCC) that charges for extras like bags and seat assignments, they do not "cut corners" on safety or maintenance to save money. In fact, Frontier operates one of the youngest and most fuel-efficient fleets in the industry, primarily consisting of Airbus A320neo family aircraft. Younger fleets generally have lower mechanical failure rates and benefit from the latest cockpit safety technology. While the airline often receives criticism for its customer service or seating comfort, these are operational "frills" issues and have no bearing on the mechanical safety or pilot training standards of the airline, which remain high.