Check out Amazon for the Brother CS6000i, 16 pounds. I and three of my friends sew once a week at a local church, making quilts for kids. All of us have this machine and they travel well in a serger bag, then you have extra room for supplies.
My Featherweight is too precious to travel with, it is the first electric machine I sewed on.
Brother CS6000i Sew Advance Sew Affordable 60-Stitch Computerized Free-Arm Sewing Machine
by Brother.
Price: $164.00 Free Shipping