FAST® signifies which service for passengers?

The choice describing FAST® as a service for Fast track or Flexi Plus passengers is correct because it refers to the expedited processes and benefits that come with these ticket types. FAST® enhances the travel experience for passengers who purchase Flexi Plus tickets by providing faster check-in, priority boarding, and quicker access to security areas at airports, thereby reducing overall waiting times. This service is aimed at improving convenience and efficiency for travelers who prioritize a hassle-free journey.

The other options suggesting additional snack services, bulk baggage, or extra legs for coaches do not accurately represent the FAST® designation. These alternatives pertain to other aspects of air travel and service offerings but do not encompass the specific advantages related to expedited processing for Flexi Plus customers. Thus, the focus on Fast track services aligns correctly with the intended purpose of the FAST® program.