KLM Royal Dutch Airlines is Certified as a 4-Star Airline for the quality of its airport and onboard product and staff service. Product rating includes seats, amenities, food & beverages, IFE, cleanliness etc, and service rating is for both cabin staff and ground staff.

As of 2026, KLM Royal Dutch Airlines maintains a prestigious 4-Star Airline rating by Skytrax, the global international air transport rating organization. This rating is a reflection of the airline's high standards across its product offerings and staff service, both onboard and at its home hub, Amsterdam Airport Schiphol. The 4-star designation indicates that KLM provides a consistently good level of service across all cabins, including its World Business Class and Economy Class. KLM is particularly noted for its unique Dutch touches, such as the iconic Delft Blue miniature houses filled with gin given to business class passengers, and its commitment to sustainability through its "Fly Responsibly" initiative. While it falls just short of the 5-star elite category reserved for airlines like Qatar Airways or ANA, KLM is considered one of the leading European carriers, offering a reliable, high-quality experience with modern amenities, ergonomic seating, and a robust inflight entertainment system that meets the expectations of global travelers.