The deal ends today. There are some limitations to this:
$35 for flights between 0 - 450 miles
$65 for flights between 451 - 1000 miles
$95 for flights between 1001 - 1500 miles
$125 for flights for anything 1500 miles of more
Price does not include fees, and you cannot get that price on Sundays. However, you could still go out to your destination on a Friday and get the low rate and just get a regular fare on a Sunday if you return then.
Travel dates for this promotion are November 30 through December 14, 2011 and January 4 through Feburary 15, 2012.
I'm about to book a round-trip deal for me and my wife from DC to Kansas City for $345.60 total. Not too shabby.