US Airways’ The US Airways 100,000 Miles Sweepstakes

https://www.audiencerewards.com/usairways/offers.cfm

Must be a member of the US Airways Dividend Miles frequent flyer program. Up to 40 additional entries for answering trivia questions (trivia is not mandatory to enter). 
 Prize: (1 winner) 100,000 US Airways Dividend Miles; two premium tickets to a Broadway show (winner’s choice out of 4 participating shows); and 2-nights hotel stay. (ARV $2,800)