You can get a 10 percent discount on a JetBlue roundtrip flight when traveling between Sept. 5 and Nov. 7, 2012, when you purchase a pound of coffee at participating Dunkin Donuts and use the promotion code on the package. The flight must originate from EWR, JFK, LGA or Westchester County (HPN), N.Y.

The promotion code is valid until Sept. 4, 2012. Visit http:/www.jetblue.com/dunkin for full information. Blackout dates apply and the code is good for one time only.