A beverage flight is an assortment of like drinks in small servings. For example, if you have a tequila flight there will be four (sometimes more, depends upon where you are) different types of tequila. Usually in one ounce portions, but not always. A wine flight, or beer flight, same idea. You'll want to know how many samples make up the particular flight, and which brands of the drink is included. Does that help?