Are there any benefits for 6 years of air national service?

The DD214 discharge papers will have a code that is the key to what benefits your loved one is eligible for.
There is a big difference if the person served during a declared war or not.
Please contact your local ( every county has them) Veterans Service Office.
They can help you to navigate the Veterans Benefit programs.

Depends when/where you served. Go up to Money & Legal and click on Veterans Assistance.