Astrop is right.
I used the TC40 + AM3 + Fully equipped Askar FRA300 on my Astro Holiday in Namibia.
Only the telescope and Camera were in the carry on luggage. Tripod and mount traveled in the normal luggage. Tohether with Asiair, Laptop, guidescope and travel essentials I was already over the allowed 8kg. But nobody cared for the weight of my compact, but very heavy, backpack.
The tripod needs to be sturdy, normal photo tripods will not be up to the task.
If the TC40 is a bit to long, it cannot be much. Will disassemble the tripod do the trick? The spikes need to be removed anyway, or security might take away you tripod anyway.
Cheers,
Stephan