Short answer... any age with an instructor. The real answer is not so short, especially if you are asking about jet airliners...
At 16 you can get a student pilot certificate by passing a medical exam and eventually fly solo (no passengers) but not in an airliner.
At 17 you can get a private pilot or recreational certificate and take passengers, but not in an airliner.
At 18 you can get a commercial certificate to carry passengers or freight for hire, but not in an airliner.
At 21 you can get an airline transport pilot certificate and carry passengers or freight for hire, in an airliner.
Each license has further FAA requirements for knowledge and experience, but the limiting factor is really the insurance company that protects the owner of the airplane in question. They can layer on additional requirements such as how many thousands of hours in a certain type of aircraft.
A few more stepping stones along the path...
There are three levels of medical exam that go with different certificates and operations.
If there is more than one engine you'll need a multiengine rating. If it floats you'll need a seaplane rating. If it has a jet engine there is a turbine rating for that. Then there are type certificates because the big airplanes are so complex that transferring from one twin engine airliner to another without type-specific training would be unsafe.
You can search "FAR 61" at FAA.gov for the intricate details.
It depends on what kind of jet or commercial airplane it is.
22 hours
A 6-year-old needs a ticket, identification, and adult supervision to fly on an airplane.
To fly on a commercial airplane, your 5-year-old will need a ticket, identification, and possibly a birth certificate. They may also need to follow specific safety guidelines and be accompanied by an adult.
it doesn't say anything against age..... but you must have a right restraint system or hold the baby.
Yes, surely an infant can fly in an airplane with his/her parent....no issues at all...I have myself carried my 4 month old baby abroad in airplane. PM
Yes, a person weighing 400 lbs can fly on a commercial airplane. However, they may need to purchase an extra seat or make special arrangements with the airline to ensure their comfort and safety during the flight.
In the US you can fly an airplane (accompanied by an instructor) at any age. You must be 16 to solo and 18 to obtain a pilots license.1
Can you fly on airplane with pericarditis
Most commercial jetliners fly routes between 28,000 and 35,000 feet.
In WW1 pilots were called fly boys.
An 8-year-old needs a valid identification, such as a passport or birth certificate, to fly on an airplane. They may also need a ticket and possibly a guardian or adult accompanying them, depending on the airline's policies.