For travel over the Labor Day holiday, fly nonstop from New York to Jacksonville for $316 roundtrip on JetBlue.
Searching JetBlue, I found seats departing JFK on Friday, August 30, returning from JAX on Tuesday, September 3.
This fare includes a carry-on bag plus one small personal item. A checked bag costs $30 each way.
This ticket includes seat selection which you can select when booking.
Slightly lower fares may be available on other carriers in basic economy, though advanced seat selection would not be included.
Check out other Labor Day finds here.
Need a room in Jacksonville? Here's what's available for the above dates on Hotelwatchdog.