you should be fine as long as the jeans don't move around too much while in luggage. But, why not just wear them onto the plane?
im flying to the middle east, so its going to be crazy hot out of the plane, so I thought shorts and some loafers would be a good and more comfortable idea, rather than some heavy denim that at this point is quite abrasive.
Thank you for your perspective.
If its as hot as you say it is, why bring jeans?