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Take a friend for coffee at Dunkin' on Natl. Coffee Day, September 29, and the second cup of same size or smaller is free!

Dunkin’ Donuts Celebrates National Coffee Day With Buy One, Get One Offer 

Saturday, September 29 is National Coffee Day, and at Dunkin’ Donuts, they want you to share the coffee love. Buy one medium or larger hot coffee, and you can get a free hot coffee the same size or smaller. Bring a friend! Offer good at DFW locations, including in Plano, Dallas, McKinney, Frisco, Rockwall, Southlake, Colleyville, Murphy, Hurst, Flower Mound, Cedar Hill, Arlington, Euless and more!