SHUTTLES is a playable word

shuttle Scrabble® Dictionary

verb
shuttled, shuttling, shuttles
to move or travel back and forth
95 Playable Words can be made from "SHUTTLES"
   2-Letter Words (10 found)
   3-Letter Words (23 found)
   6-Letter Words (8 found)
   7-Letter Words (5 found)
   8-Letter Words (1 found)