Loyalty programs · By Points Frog Editorial ·
Cathay says earning or redeeming Asia Miles at least once every 18 months keeps an account active. For miles earned from January 1, 2020, an eligible credit or debit extends the expiry date by 18 months. Miles credited before that date remain subject to the older arrangement.
The useful question is therefore about the account's recorded activity, not simply when you last took a trip. A flight, purchase or redemption you expect to post is not yet evidence that the balance's expiry date has moved.
Read the account before making a plan
Check the current balance, expiry information and transaction history. Identify the most recent eligible activity and retain its posting date. If the displayed date does not match your understanding, ask Cathay about the account rather than assuming that another program's rules apply.
Start with the Asia Miles points-value page and our program directory. Those pages provide context for the currency. The account record and current Cathay terms determine what happens to your actual miles.
Distinguish a redemption from its reversal
Cathay's FAQ places earning and redeeming in its eligible-activity list. Cancellation or refund and miles expiration appear in its non-eligible list. Do not assume that canceling a booking creates a fresh extension simply because miles come back into the account.
If an award is no longer useful, assess its cancellation terms on their own. Keeping or canceling the ticket should make sense for the trip. It should not depend on an unverified idea that the refund will restart the activity clock.
Our British Airways reward-cancellation guide and Emirates refund guide show why a refund and expiry need separate checks. Neither is Cathay's rule; use them as prompts to inspect the right program's terms.
Avoid an unnecessary purchase
Look first for an eligible activity connected to something you already intend to do. Check that the partner participates, the account number is correct and the transaction meets its terms. Record the expected posting period so you can follow up while there is still time.
A points-preservation plan should include its real cost. Spending more than a needed product costs elsewhere solely to earn a small number of miles can reduce the value of the balance you are trying to protect. Compare the whole purchase, not just the displayed earning rate.
The Accor activity guide offers another example of checking whether an activity actually qualifies. The KrisFlyer expiry guide is a useful contrast: new earning does not restart that program's ordinary three-year clock. A rule that works for one currency should not be copied into another account.
Connect the balance to a useful trip
Review possible routes and the travelers who will use the miles. Lounge Frog’s Hong Kong airport directory and the Cathay airline directory can support the airport part of the journey. If flights feed a sailing, include Cruise Frog’s port guides when checking ground transport and arrival timing.
Keep a dated reminder before the displayed expiry and check the account again after qualifying activity posts. Saving a confirmation and seeing the new date in the account is stronger evidence than relying on an old calendar note. The aim is a usable balance with a clear purpose and a visible deadline.
Sources and date checked
Checked October 14, 2026. Cathay’s account-activity and mileage-expiry FAQ.