Highest Mountain and Peaks in each of the US States. Profiles the highest mountain in each of the 50 US states with a brief description, elevation, and ranking. Links to an interactive topo map of each high point. WARNING: Wilderness conditions can change suddenly.
Best Answer: A tethered hot air balloon flight will typically be between 50-75 feet. It's high enough for the passengers to get a feel for the height and manageable enough for rope length. I have heard of some gas ride balloons that are on a winch go higher. To tell you the truth, I can't recall the max height for tethering. It wouldn't be different than for gas balloons.
On a Boeing 747-400, the maximum ceiling is 45,000 feet and on the Airbus A320, it is 39,800 feet. So, it varies with the different type of planes concerned. Generally, most airliners could fly at higher altitudes, but they are usually certified to an altitude that gives them a good safety margin.