I was just looking at "My Account" at united.com and noticed that the Mileage Expiration had this note:
Thank you for being a Chase MileagePlus cardmember. Your miles will not expire as long as your credit card account is active, your annual membership fee has been paid and the card is not in default. Upon cancellation of your credit card account, your miles will expire in accordance with the MileagePlus program rules.
Does that mean if I cancel this card, my united miles will be deleted?