Flew JFK-LAX on Song (Delta's low fare carrier). Cost only $107 with taxes for the one way ticket (7 day advance purchase). I took the last flight out 9:45pm but didn't land until 1:30am PST because we were delayed an hour. I didn't care about the delay because the flight was great. It was only 1/3 full (had a whole row to myself) and the amazing in-flight entertainment kept me busy -- it has live TV, movies ($5 charge), video games, and music that allow users to make their own play list. On top of that the flight attendants were cool and offered tasty food for a charge.