When a designer calculates a flat fee for travel-related tasks, which of the following is least likely included?

A flat fee for travel-related tasks typically encompasses various expenses directly associated with the journey and the work performed during that time. Among the options listed, transportation costs, hotel costs, and meals are common components of travel expenses because they are directly tied to the logistics of traveling for a project.

Travel insurance, while important for certain situations, is not a universally standard expense that designers incorporate into flat fees. Many designers may opt to absorb the costs associated with travel insurance as an additional risk management measure or may leave it up to the client to procure their own travel insurance. This makes it less likely to be included in the basic flat fee calculation compared to direct travel costs such as accommodation, meals, and transportation.

Thus, in the context of standard practice for calculating a flat fee for travel-related tasks, travel insurance is typically considered an ancillary cost and least likely to be included.