Originally Posted by
BigAppleFlyer
Thanks everyone for the responses--this makes sense now. I would just note that the rules for the certificate clearly state that "W" class may be booked and it is listed in sequence with all the other fare classes permitted. I see none of these limitations. Delta should clarify this in my view.
https://www.delta.com/us/en/booking-...n-certificates
FWIW under "Reserve Companion Certificate Terms & Conditions" it says:
"For Delta Comfort+ travel, tickets are available in W and S classes of service, but only when L, U, T, X, or V classes of service are available in the Main Cabin."
Amex site T&C has the same language.