Is Frontier a Good Airline can be a good option depending on what you expect from a flight. It is an ultra-low-cost carrier known for very cheap base fares, which makes it attractive for budget travelers. The airline has strong safety ratings and has been listed among the safer low-cost airlines. However, customer satisfaction is often low because many services, such as seat selection, carry-on bags, and food, cost extra. Frontier also receives more complaints than many competitors and has lower on-time performance compared to some major airlines. Overall, Frontier can be a good choice for travelers who want low prices and do not mind fewer amenities or added fees.