Usually yes, but it is not guaranteed. In practice, many travelers report carrying tripods or monopods through security without problems, especially if the monopod folds small enough to meet the airline’s carry-on size and weight limits.

The main issue is that airport security officers have discretion. A monopod may be questioned because of its shape or length, even if tripods/monopods are not specifically listed as prohibited. A spiked foot would make it more likely to be rejected.

Best advice:

• make sure it fits normal carry-on dimensions
• avoid models with spikes or sharp accessories
• check both airline baggage rules and airport/security regulations for every airport on your route
• bring printed copies of the relevant rules in case you need them
• be prepared for inconsistent enforcement and have a backup plan, such as checking it if necessary

A shorter-folding monopod is generally the safer choice for travel. Carbon fiber may help with weight, but size and the security officer’s judgment matter more than the material.