Yes, HawaiianMiles expire if you have had no activity on your account in the last 18 months. Per HA: Earned mileage will expire when a member does not earn or redeem miles for 18 consecutive months from the last date of member activity.

There is a ton of information covering techniques to earn and burn points and miles. Advice on which credit card to add to your wallet, identifying airlines and hotels that will maximize the value of rewards points, and mapping out redemption options all over the world. One aspect of rewards travels that’s a little harder to unearth reliable information for, is family pooling and transferring of program points or miles. Here, we’ll highlight transfer policies for major programs, and offering simple ‘how-to’ instructions on sharing points and miles with your family and friends — all at no cost.