The term "antarctic flyer" can be replaced with a few synonyms to add more variety and interest to your writing. For example, you might use terms such as "southern aviation expert" or "polar pilot" to describe someone who is experienced and skilled at flying in the Antarctic region. Alternatively, you could use the term "South Pole aviator" or "subzero flyer" to evoke an adventurous and daring spirit. Regardless of which terms you choose to use, be sure to pick words that accurately convey the unique challenges and rewards of flying in this remote and inhospitable part of the world.