Skytrax (originally known as Inflight Research Services) is a United Kingdom-based consultancy which runs an airline and airport review and ranking site. Skytrax conducts research for commercial airlines, as well as taking surveys from international travelers to rate cabin staff, airports, airlines, airline lounges, in-flight entertainment, on-board catering, and several other elements of air travel. Apart from these evaluations, Skytrax has an airline forum where passengers give potential passengers insights and opinions about an airline. The website also hosts flight reviews, flight checks, and satisfaction surveys. Skytrax holds an annual World Airline Awards and World Airport Awards, as well as the ranking for airlines and airports.
In 2012, the online investigations company KwikChex filed five complaints with the UK Advertising Standards Authority related to statements on the Skytrax web site describing the volume and reliability of their reviews as well as the official status and update frequency of their ratings. The Authority upheld all five complaints and Skytrax agreed to modify some promotional wording.
Inflight Research Services sent some information to the UK House of Lords Select Committee on Science and Technology's Fifth Report regarding seat pitch in 2000.
Skytrax presents awards annually to airports and airlines that it considers noteworthy in their performance.