Different kinds of miles from Miles and More:
Award miles: Generally Award miles are valid for 36 months. But there is no validity time limit for Frequent Travellers, Senators, HON Circle Members and JetFriends till they retain their position.
Status miles: These miles will find out the status of the Frequent Traveller and Senator in the calendar year in which their accounts are credited with miles. Every status mile is also counted as an award mile.
HON Circle miles: These count towards achieving HON Circle status. After every two successive years, the HON miles are counted for status.