Delta when booking with Costco?

[SL6827]

When booking a package with Costco and you have Delta as your airline, what is the difference in Delta Main Class and Delta Main Extra? Both say you can pick your own seats and both says they are non refundable. I think there were another category or two available as well.

 

[sam_gordon]

When booking a package with Costco and you have Delta as your airline, what is the difference in Delta Main Class and Delta Main Extra? Both say you can pick your own seats and both says they are non refundable. I think there were another category or two available as well.

"Class" or "Classic"? According to Delta...

Extra should get you refundable.