Yes, you can take needles on a plane in the UK in 2026, but the rules depend on their purpose. Knitting needles and crochet hooks are permitted in both carry-on and checked luggage by the Civil Aviation Authority (CAA). For hypodermic needles used for medical purposes (e.g., insulin or epinephrine), they are allowed in your hand luggage, but you must carry supporting medical documentation, such as a doctor's letter or a copy of your prescription. In 2026, UK airport security remains strict about how these are packed; they should be kept in their original packaging if possible. If you are carrying sewing needles, these are generally allowed in small quantities, but large or industrial-sized needles may be flagged for manual inspection. Always inform the security officer if you have medical sharps to ensure a smooth screening process.