Hi, it is safe to say that you should target your percentage from 75% and up. Here are some of the flying schools that accept international students.

• Embry Riddle Aeronautical University-Daytona Beach.
• Everglades University.
• Florida Institute of Technology.
• Fox Valley Technical College.
• Church Divinity School of the Pacific.
• Lynn University.

You will also have to give English proficiency tests. While you look for admissions on their website they will tell you which test are required and you need to prepare accordingly. Hope this helps. If you still have doubts feel free to comment. All the best!