$211 - Roundtrip Flights to LA from New York
US Airways is offering all kinds of cheap flights around the US right now. Included in these deals, are roundtrip flights between New York and LA for $211 including all taxes and fees.
The cheapest flights are on Wednesdays and Thursdays and have quick layovers in Milwaukee.
Midwest Airlines and AirTran are also operating discount flights between New York and LA right now.
Of course, Virgin America is also an option, but these flights tend to be $50-100 more, though direct, and much more enjoyable than flights with United, Midwest, or AirTran.