LaunchFlowFromVisualforce.html

<apex:page standardController="ObjectName">

    <flow:interview name="FlowName"
                    finishLocation="/{!ObjectName.Id}">

        <!-- This is an example apex:param that would 
             pass a value from this record to the Flow -->
        <apex:param name="varName" value="{!ObjectName.FieldName}"/>

    </flow:interview>

</apex:page>