Can I deduct college expenses of flight costs for training and fuel and aircraft rental for my son who is getting a degree in commercial aviation?

[KrisD]

Yes, if it was needed for his course of study. They would be entered as education expenses, and if you meet the other requirements, would be used to qualify as an education credit. If you do not qualify, they would not be deductable any other way. 

According to the IRS:

"expenses for books, supplies, and equipment needed for a course of study are included in qualified education expenses whether or not the materials are purchased from the educational institution."

CLICK HERE for IRS Pub 970 Education Credits