how to avoid losing miles

Keeping your airline miles from expiring takes a bit of planning and regular activity.

Stay Active with Earn or Redeem Requirements

• For American Airlines AAdvantage, earn or redeem miles at least once every 24 months, or maintain an open AAdvantage‑linked credit card, to keep the miles from expiring.
• Frontier Airlines requires mileage‑earning activity at least once every 12 months, often satisfied by using the Frontier World Mastercard, to prevent expiration.
• Alaska Mileage Plan miles don’t expire, but the account will be locked after two years of inactivity, so occasional activity is still needed.
• Delta SkyMiles and Southwest Rapid Rewards are marketed as “never expire,” yet both can be deactivated for inactivity or fraud, so logging in and making a qualifying transaction helps keep the account in good standing.

Use Credit Cards and Partner Activity

• Many airline programs count purchases on co‑branded credit cards as qualifying activity, so keeping the card open and using it regularly maintains mileage eligibility.
• Hotel stays, car rentals, and other partner services that award miles also count toward the activity window, providing extra ways to stay active without flying.

Leverage Transfer and Pooling Options

• Programs such as Frontier, United, and JetBlue allow you to pool or transfer miles to another member (often for a fee), which can be useful if you’re nearing an expiration deadline.
• Using “Memorial Miles” (e.g., Alaska’s program) or contacting the airline’s customer service can sometimes move miles to a spouse or designated person after death, preventing loss of the balance.

Redeem Before Expiration

• Book award flights, upgrade cabins, or purchase tickets for friends and family well before the activity deadline to use up miles that are close to expiring.
• Some airlines let you use miles to pay for cash co‑pays on upgrades; doing so can preserve the miles while still getting value from them.

Monitor Account Status Regularly

• Set calendar reminders for the 12‑ or 24‑month activity windows specific to each program so you don’t miss the deadline.
• Check your account’s “last activity” date in the airline’s portal and verify that your credit card or partner activity is being credited correctly.