These characters combine to create the literal image: “with a single flight, rush to the sky.” This visual metaphor is the core of its meaning—success that is not gradual, but happens in one decisive, powerful move.
The origin of 一飞冲天 comes from a story in the *Records of the Grand Historian* (史记, Shǐjì) about King Zhuang of the state of Chu (楚庄王) during the Spring and Autumn period (around 771-476 BC). For the first three years of his reign, the king ignored his duties, indulging only in pleasure and feasting. He issued an order that anyone who dared to advise him would be executed. A brave minister, Wu Ju, risked his life to ask the king a riddle: “On a hill, there is a bird that has not flown nor sung for three years. What kind of bird is it?” The King, understanding the metaphor for himself, replied, “This bird may not have flown, but once it does, it will soar to the heavens (一飞冲天). It may not have sung, but once it does, its song will startle the world (一鸣惊人, yī míng jīng rén).” True to his word, the king immediately reformed his government, executed corrupt officials, and led his state to become one of the most powerful of its time.
一飞冲天 is a popular and vivid idiom used to express admiration for sudden, dramatic success.
Its connotation is overwhelmingly positive and celebratory. It is suitable for both formal writing (news reports, analyses) and enthusiastic informal conversation.