While we’re at it, via Gary Steiger’s Free Frequent Flyer Miles page:

If you are an Elite level member of another airline’s frequent flyer program, Frontier will make you an EarlyReturns Ascent member immediately, plus 5000 bonus miles for each flight (up to 15,000 bonus miles) for flights taken by January 31, 2004. Simply send in your name, EarlyReturns number, and most recent other airline statement showing your Elite status for 2003 to quickascent@flyfrontier.com or fax in a copy of your other airline statement to (720) 374-4375 (attn: Quick Ascent).