Fly nonstop from Washington DC to Jacksonville for $137 round-trip on American/US Airways.
Searching AA.com, we found seats available for travel over the July 4th holiday, departing DCA on Thursday, July 2, returning from JAX on Tuesday, July 7.
You'll find plenty of other dates available for travel through mid December.
For booking info, see our Fare Details.
Looking for a room in Jacksonville? Here's what's available for the above dates on Hotelwatchdog.