All of these airlines perform the same core operation: they safely aviate from one spot on the globe to another. The initial distinguishing feature is the city pairs they serve. If there is overlap, we can start deciding based on price, schedule, features, and amenities. Sometimes we spend too many resources evaluating choices that are not viable. Singapore Airlines might offer a better in-cabin experience than United Airlines, but it was not scheduled to fly where I needed to go.

How might we evaluate the key components of a decision before we get caught up in subtle distinctions?