Honors and AP classes are completely different from one another in many ways. The most significant difference between the two is associated with college credit.
Honors courses follow a standard structure similar to high school, but cover additional topics and go more in-depth with a more vigorous learning and studying routine. When Universities and high schools are in the same state, honors courses are looked at with a higher regard by admissions.
Advanced Placement (AP) courses provide academically elite and extra motivated students a platform to prepare to work at college level. They are essentially college level classes and have a standardized exam at the end of the course.