Migration of virtual machines within a computing environment is facilitated. A processor obtains a current virtual machine to host mapping in the computing environment, as well as a plurality of future virtual machine to host mappings. A current migration plan to migrate from a current state of the computing environment to another state of the computing environment is also obtained. Based on the current virtual machine to host mapping and one or more future virtual machine to host mappings of the plurality of future virtual machine to host mappings a determination is made that one or more potential alert conditions exist in the current migration plan. The current migration plan and/or one or more future virtual machine to host mappings are displayed. The current migration plan is adjusted to address at least one potential alert condition of the one or more potential alert conditions to improve processing within the computing environment.