Claim Burger King’s Facebook coupon for 2 Original Chicken Sandwiches & 2 Small Fries for $4.99 before it’s gone! Clicking on the offer will send the coupon to your primary linked e-mail address. It is not necessary to “like” Burger King on Facebook to get the offer. Clicking on the offer might post it on your wall, but you can delete it or adjust your privacy settings. It is unclear how long the offer will be posted, but the coupon expires November 4th.