How can I check the expiration date of my MileagePlus miles?

To check the expiration date of MileagePlus miles, members can easily do so by logging into their United Airlines MileagePlus account on the official website. Once logged in, members will find a section dedicated to their account summary, which includes details about their current miles balance and any relevant expiration information. Typically, United MileagePlus miles do not expire as long as there is qualifying activity in the account at least once every 18 months. This activity can include earning or redeeming miles through flights, car rentals, hotel stays, or even certain partner promotions. It is advisable for members to regularly monitor their account to keep track of any expiring miles and ensure they maintain activity, should they wish to maximize their rewards. For the most current information, visiting the official MileagePlus webpage is recommended.