After seeing the available options for a particular set of flights chosen from the flexible weekend search calendar, clicking the "my dates are flexible" link in the panel to the left of the search results should bring back up the calender. But instead, I just get error messages:



Since the original search was DCA-JAN for weekends in May and I followed a link to the calendar from the search results page, the fields should be filled with my original search parameters. It's really annoying to have to enter it all in every time. Also, if I change the departure city and search again without leaving this page, I sometimes still get the results of my original search, even though I'm asking for flights that leave from a different city.

Finally, it would be nice if the booking engine was smart enough to return options from a flexible weekend search that include departures on the last day of the month, instead of just showing those dates as "not available" when they are (e.g., departing R 3/31 and returning Sun. 4/3 in a search for weekends in April)