I got my tickets, $570 for 4 people in December. However, I was booking Friday to Saturday. Right before I hit place order, after I did the credit card info, I opened a new window just to check on flights for Sunday. I decided to stick with Saturday, so I closed the Sunday window, and my current window still said Saturday. I hit purchase, then it printed my confirm with tickets for Sunday! Hmph, I'm on hold, but my guess is I'm staying an extra day now.
Erika