The city is restoring or expanding nearly two dozen bus routes that were cut in 2010 to close a budget gap.
Seventeen routes will return on Sunday, and four others will be back on Jan. 20.
The MTA says stronger revenues than anticipated made the service restorations possible.
Among the routes coming back:
The B57 in Brooklyn between Carroll Gardens and Red Hook;
The B39 between Williamsburg, Brooklyn and the Lower East Side;
The M9 in Manhattan will extend to East 29th Street from its terminus at 23rd Street and down from City Hall to Battery Park City;
The BX34 daytime service will return during weekends;
The Q27 overnight service from Horace Harding Expressway to Cambria heights, Queens.