I have 2 delta companion certificates that expire on March 31st 2017. Valid for First Class or Main Cabin!
Companion certificate is valid for one round-trip First-Class or Main Cabin companion ticket with the purchase of certain adult round-trip fares on published routings within the 48 contiguous United States. Residents of Hawaii, Alaska, Puerto Rico, or the U.S. Virgin Islands must originate from there to the 48 contiguous United States.
Let me know if you have any questions. Make me an offer for 1 ticket or both!!