There are many different ways to express the idea of "took a plane" in English. Depending on the context and the level of formality, some of the most common synonyms include "boarded a plane," "flew by aircraft," "took a flight," "traveled by air," "hopped on a plane," or simply "flew." Each of these phrases can be used to convey the same basic meaning of traveling via airplane, but they may have slightly different connotations or implications. For instance, "boarded a plane" might suggest a more formal or intentional trip, while "hopped on a plane" could imply a more spontaneous or casual journey.