I second Mike Cordelli's statement that jeans are not the ideal travel pants.

However, I myself sometimes wear a pair of jeans for travel; usually when I know it is a 3-4 day leisure trip and I don't have to wash them and will carry only one other (dressier) pair of pants anyway.

Of course, fit and comfort and looks are very individual. The only general advice I could give is that there are some jeans that contain about 5% elasthane (a stretch material). You get them in the size and fit that you like. The stretch provides additional comfort. I also find zippered jeans more practical and more comfortable because the fly isn't so thick and bulky.

A little extra room in the waist for the jeans you are going to travel in is probably a good idea, too. After all, our bellies don't get flatter when we sit down.

Till