DW and I are taking our fist trip since she aquired her power chair. We will fly on Southwest changing planes once each way. How difficult do you think it will be to travel with her power chair? It is an invacare pronto sure step. It breaks down with the largest and heaviest piece being the seat at about 50 lbs. Any advice would be appreciated. It would be so much more fun for her not to have me pushing the whole time.