Whether you need to remove hair straighteners from your bag at airport security depends largely on the type of device and the specific technology at the checkpoint. Standard corded hair straighteners generally do not need to be removed from your carry-on bag unless a security officer specifically requests it, similar to other small electronic grooming tools. However, if you are using a cordless straightener powered by lithium batteries or gas/butane cartridges, the rules are much stricter. According to TSA and many international aviation guidelines updated for 2026, cordless devices must be in carry-on baggage and often require a safety cover over the heating element to prevent accidental activation. If the airport uses older X-ray scanners, dense electronics can clutter the image, leading officers to ask you to place them in a separate bin. In contrast, airports equipped with modern CT (Computed Tomography) scanners usually allow all electronics to remain inside the bag. To avoid delays, it is best to pack your straightener in an easily accessible spot.