It's a whole new Boston Travel Guy!- I'm still bringing you travel deals from Boston, but I'm adding eating and drinking tips for the Boston/New England Area, coming from a Restaurant Industry Professional.
Scarce dates available. More info here. I found this fare available for several December dates, on Spiritairlines.com. I searched December 4-7 and got $67 each way, with other dates available on the results page.
Fly from Boston to Cancun from $219 Total with Tax this December! I found this fare for 12/3-12/12 but check other dates too! The average price for this city pair is $325-$350 in my experience. Start your search at Kayak.com and check your dates.