Departing: Returning:
This page has two UltimateDatePicker controls and one UltimateCalendar control used by both date pickers. You can associate multiple UltimateDatePicker controls with a single UltimateCalendar control by setting the UltimateCalendarID property of each UltimateDatePicker to the ID of the same UltimateCalendar.

When you select a date in the Departing date picker it sets the MinDate property of UltimateCalendar to the selected date so that the Returning date picker disables the days before that date. Similarly you can set a MaxDate to put an upper limit as well.

You can display as many months as you wish and in various layouts as shown in the Multiple Months sample in more detail.