Hi Lisa,
Love the Epcot International Food and Wine Festival! I look forward each year to the official announcement of the festival dates, which usually is posted first on the
Disney Parks Blog in February.
In the past, the festival generally has started on the Friday of the last weekend in September and continued through the Monday after the second weekend in November. The exciting news for 2014 is that an extra week has been added to the start of the festival, which now will run from September 19 through November 10. No adjustment was made, however, to the end date.
So, if the previous pattern continues through 2015, the final day for Food and Wine would probably be November 9 -- the day you hope to arrive.
I'm sorry I can't be more definitive, but I hope that gives you a little more information to help you make a decision about your travel dates.
Thanks for visiting the Disney Parks Moms Panel with your question. Please let us know if we can help in any way as you solidify your plans for your 2015 visit. Enjoy!
Wilma