Upgraded Points reveals a limited-time opportunity to purchase Hawaiian Airlines HawaiianMiles with a bonus of up to 50% until September 13, 2024, offering insights on the value, purchase details, and potential benefits for travelers. In an exclusive offer highlighted by Frequent Miler, Amex Membership Rewards transfers to HawaiianMiles are currently receiving a 20% bonus, enhancing the value proposition for those looking to top up their HawaiianMiles balance. This dual promotion provides a unique chance to maximize your miles for future travel adventures. The Points Guy adds that this deal ends in a week, making it a time-sensitive opportunity for maximizing your points and miles.