I know that Hertz rentals have car seats to rent when you rent a car. Iused to work for them. Just tell them the size and age of the child and it will be there when you pick up the car. We were at the airport and if you tie up the stroller so it doesn't open you can put it in the check lugage. It would be best to attach it to some lugauge or it could be lost. I don't know what kind you have but for traveling the small umbrella ones are the easiest and best. I took my kids every where in mine.