The present disclosure relates to method and apparatus for mobility in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: performing a dual active protocol stack (DAPS) mobility procedure for a mobility from a source cell to a target cell while maintaining a radio link for the source cell; performing a radio link monitoring (RLM) comprising a monitoring of a number of consecutive out-of-sync indications received on a radio link for the source cell during the DAPS mobility procedure; and after detecting a radio link failure (RLF) for the source cell based on the RLM, stopping a transmission on the radio link for the source cell during the DAPS mobility procedure.