Went by plane (4)
I believe the answer is:
flew
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">went by plane</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for flew that I've seen before include "lip" , "Took off" , "Fled" , "was airborne" , "Rushed (by air?)" .)