Frontier has round-trip flights from Dallas (DFW) to New York/Newark (EWR) for $62, NONSTOP. Flights September to October. Departures on Monday, Tuesday, Wednesday, Thursday, and Saturday. Extended weekends available. Origin/Destination reversible. Flights are early in the morning.
The $97 flights on regular domestic carriers that we mentioned a few weeks ago is still available: [Nonstop Flights: Dallas to/from New York $97 r/t [Aug-Mar] – JetBlue / Delta / American / United]