To save some money on your flight, consider booking a hot air balloon for just you and your family. When you book the entire balloon for the time being, you will be able to get a discount, in some cases, for both of you and only you on the flight.
Determining the cost of a hot air balloon ride is something that you should do. You should get an estimate of the cost before you sign up for the trip. You should also determine what fees need to be paid up front before booking your flight and what are paid at the time of flight.