Acronyms in this post can be found here:http://forums.dansdeals.com/index.php?topic=10531.msg163429#msg163429How to keep miles alive:
Airlines:AA: Activity every 18 months.
AC: Activity every 12 months and all miles expire 7 years after earning date regardless of activity.
BA: Activity every 36 months.
CO: No Expiration currently enforced.
DL: No Expiration.
LA: Expires after 36 months, only renewable by taking a paid LA flight.
UA: Activity within 18 months (including shuffling miles between CO and UA), or no expiration with a
CO OPP or
UA MPE card.
US: Activity every 18 months.
WN: Activity every 24 months.
Hotels:HGP: No Expiration currently enforced.
HH: Activity every 12 months
MR: No Expiration currently enforced.
PC: No Expiration.
SPG: Activity every 12 months
Credit cards:Proprietary point programs (AMEX MR/Citi TY/Chase UR) do not expire as long as you keep an active credit card open.
Airline/Hotel rewards deposited into your account by a credit card remain even if the card is no longer active, subject to the normal expiration dates listed above.
Please correct me if I missed anything or if I'm wrong