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: Earns a certificate valid for Main Cabin, Delta Comfort+®, or even Delta One® (First Class). Step-by-Step: How to Redeem Log In : Sign into your account on the Delta website .
Check your SkyMiles profile now to see if you have an unused certificate waiting for your next adventure. How to Use Delta Companion Certificate delta buy one get one free
: Earns a Main Cabin companion certificate each year upon renewal. : Earns a certificate valid for Main Cabin,