There are several synonyms for the phrase "comes through with flying colors." Some alternatives include "succeeds with flying colors," "performs exceptionally well," and "achieves outstanding results." Other options include "excels," "triumphs," and "shines." All of these phrases convey the idea of succeeding or performing exceptionally well in a given task. They are often used to describe someone who has passed a difficult test or received an award or accolade for their accomplishments. No matter which synonym you choose, the underlying message is clear: the individual in question has exceeded expectations and showcased their skills and abilities to the fullest extent.