Everything You Can Do With Your Airline Miles Before They Expire
by Lisa Rowan on Two Cents, shared by Lisa Rowan to L from Lifehacker on (#4K9PR)
The expiration dates for airline points and miles vary as much as the rules for earning them in the first place. Many last just 18 months from the time you earned those miles, some last as long as 10 years, and some don't expire ever.