Just flew internationally to New Zealand via Fiji last June. I checked the TSA website and in one section it said you could take craft supplies such as crochet hooks, and knitting needles. Didn't even mention sewing needles and the airlines were no help, just referred me to the TSA site. I took 1 needle in carry on and my English paper piecing and had no problem. Also took a dental floss container. There is a little cutter thing inside that can cut thread easily. At the time, somewhere I read you couldn't take the pendant type cutters, but don't know if I could have or not. There cost $5-7 and didn't want to waste my money if it were taken away.
Enjoy your trip.