Let me get directly to the point here. I’m not spinning a yarn when I tell you that knitting needles and needlepoint items, including scissors under four-inches, are allowed in your carry-on bags. This includes and is not limited to circular knitting needles, bamboo, wooden, aluminum, metal, and plastic knitting needles, double pointed knitting needles, knitting hooks, knitting stitch holders, sewing kits, sewing needles, sewing pins, and sewing scissors (blades shorter than 4 in).
However, circular thread cutters, or any thread cutter with a blade must be packed in your checked baggage.
If you’re scratching your head and wondering what @AskTSA is, it’s a small team of TSA professionals from various agency offices who answer TSA related questions from the traveling public that are sent via Twitter. You can read more about the program in this recent USA Today article.
You may also wish to consult with your airline about any policies they may have regarding the item (s) you’d like to travel with.
If you have any TSA related travel questions, please send a tweet to our @AskTSAteam. They’re available to answer your questions, 8 a.m. - 10 p.m., Eastern time, weekdays; 9a.m. - 7p.m.,weekends/holidays.
Hope that helps!