United is matching AA, VX, US and DL with sub-$120 one-way transcons for JFK-LAX/SFO. LOTS of inventory out there, including lots of flights with R inventory when I was looking earlier. And, if you're traveling before 31 October, I've got an RPU to spare which I'm giving away. Priority given to those with open R inventory on the flight they're booked on but all will be considered. Leave a comment here if the RPU might work for you.