Originally Posted by
cdailing
I’m planning to purchase a flight with a companion ticket. Will do either main or comfort+.
question: Will I be offered a paid upgrade for first/delta one if i purchased my itin using a companion cert? Will I be paying the upgrade for one ticket or both? What’s the better strategy upgrade from main or upgrade from comfort+?
Companion certificate has no bearing. You of course have to pay for both. While DL sells C+ as if was a separate cabin, it is still just part of main. In fact C+ have an underlying main cabin fare class as basis. Thus there's no added benefit of purchasing C+ for upgrade purposes.