A 1-star airline rating, primarily awarded by the industry benchmark Skytrax, represents the lowest possible tier of quality in commercial aviation. This rating signifies that the airline delivers an "extremely poor" standard of product and service across both the airport and onboard environments. Travelers can expect significant failures in hygiene, staff service, and cabin maintenance. Common characteristics include broken seats, non-functional entertainment systems, poor-quality or unsanitary food, and a general lack of professional service from the crew. Essentially, a 1-star rating indicates that the airline fails to meet even the most basic industry minimums for passenger comfort and reliability. While very few airlines currently hold this designation—as most either improve or go out of business—it serves as a warning that the flying experience will be highly inconsistent and likely uncomfortable compared to the standards of major 3-star (average) or 5-star (premium) carriers.