Yes, you can bring a tripod on an airplane, but there are some important things to keep in mind. Most airlines allow tripods to be carried on the plane as long as they fit within the airline's size and weight restrictions for carry-on luggage. If your tripod is too large to fit in your carry-on bag, you may need to check it as checked luggage.
When going through security screening, you will need to remove your tripod from its carrying case or bag and place it in a bin to be scanned separately.
If you are traveling internationally, you may need to check with the airline or customs officials to ensure that your tripod is allowed in the country you are visiting.
Some airlines or airports may have restrictions on tripods with sharp spikes on the feet, as they can damage floors or carpets. In these cases, it may be necessary to remove the spikes or use rubber feet or leg covers.