check with the TSA website and/or the airline website. Make sure to have the list printed out in case there is any question.
from the travelsense.org website:
Knitting Needles, Needlepoint & Sewing
Knitting needles are permitted in your carry-on baggage or checked baggage. However, security officers have the authority to determine if an item could be used as a weapon and may not allow these items to pass through security. To avoid this from happening, bring circular knitting needles made of bamboo or plastic and blunt scissors. In any event, be sure to carry a crochet hook with yarn to save the work you have already done in case your knitting tools are surrendered at the checkpoint
Most of the items needed to pursue a needlepoint project are permitted in your carry-on baggage or checked baggage with the exception of circular thread cutters or any cutter with a blade contained inside. These items must go in your checked baggage.