Most of the air travel companies accept the garment bag as a carry-on luggage, even for the economy class tickets. Save you a lot of money. I have 2 Garment bags to chose from:
1). Italian Garmentt bag (pic. 1-2-3-4) - $30.
2). Atlantic Travel Garment Bag. Famous brand, extraordinary quality, lots of compartments. In new condition.
Well-designed, multi-compartment bag with garment hangers built-in, water and spill-resistant fabrics, and light made of premium materials (pic. 5-6-7-8) - $40.