Please specify which comet you're asking about! Comets travel at vastly different speeds depending on their location in their orbit and the gravitational forces acting on them.

For example, a comet near the Sun might be moving at tens of thousands of kilometers per hour, while a comet far out in the solar system might be moving much slower, only a few kilometers per hour.

To give you a more precise answer, please tell me:

* The name of the comet

* The comet's current location in its orbit

With this information, I can tell you the comet's approximate speed!