According to the MTA:

F Jamaica-bound trains run via the M from 47-50 Sts to Roosevelt Av

Weekends, 9:45 PM Fri to 5 AM Mon, Apr 24 – 27 May 1 – 4 May 8 – 11

F trains run express from Queens Plaza to Roosevelt Av.

No Jamaica-bound service at 57 St, Lexington Av/63 St, Roosevelt Island and 21 St-Queensbridge.

Good times had to end after 10 consecutive weekends of Roosevelt Island F train service to and from Manhattan. The Roosevelt Island Operating Corp ( RIOC ) adds:

Please be advised that the MTA has issued a weekend service advisory for the F train, which may affect travel plans. The Tram will run on a rush hour schedule from 7:00 AM until 10:00 PM to accommodate any increase in traffic. Please plan your travel accordingly and visit mta.info/weekender or call 511 for more information.

For electronic updates on F Train service, sign up for MTA Alerts at mymtaalerts.com.