According to the MTA:
F Coney Island-bound trains run via the M from Roosevelt Av to 47-50 StsExpect crowded Manhattan bound Roosevelt Island Tram cabins this weekend. Plan accordingly.
Weekend, 11:15 PM Fri to 5 AM Mon, Jul 18 - 21
Trains run express from Roosevelt Av to Queens Plaza.
No Coney Island-bound F service at 21 St-Queensbridge, Roosevelt Island, Lexington Av/63 St and 57 St.