(Via View from the Wing):
To promote its new Washington Dulles service, Southwest Airlines is offering 8 free Rapid Rewards credits for signing up and double points for flights in and out of Dulles. What’s that mean to you? Fly 2 round trips and get a free ticket on Southwest. With Chicago flights starting at $44 each way, you can get a free flight for less than $200 of flights. Not too shabby.