Subway: Free 3-Inch Flatbread Breakfast Sandwich! (3/11 – 3/16) March 11, 2013 by Chantal 1 Comment Tweet Reminder – you can get your free Subway Breakfast starting TODAY!! Hurry into your local Subway to try their 3-inch Flatbread Breakfast Sandwich for FREE! You will need to reserve yours between 3/11-3/16. Thanks,Freebiefindingmom!