Hello Danilo,
If you choose the pay as you fly option, you are required to pay at least $10,000 as a down payment before your classes begin. Then, you will start using the funds on your account until you have $1,000 left on your account. That will be the time that you will need to add more funds to your account to continue flight training.
We help in processing an M1 visa. We will provide you with the necessary paperwork for your visa and will assist you step by step throughout your process.