Originally Posted by
DLfamilyof5
Thanks! The last two letters are MQ... so it should be regular and not light, I think
Okay, then yes that is a Main Cabin/Economy fare due to the letter 'M' in second to last position. However, you can only use a GUC to upgrade directly to the PS cabin on DL equipment on a Main fare (unless the flight is operated by one of the few aircraft without a PS cabin). You need to purchase a DL PS fare or KL PE fare to upgrade directly into D1 (and there will need to be Z fare class availability on flight). Seat upgrade purchases to PS cabin after purchase will not make the flight eligible to upgrade directly to D1 cabin with a GUC.
Originally Posted by
DLfamilyof5
I may try to call Delta to book--- website and Google Flights both say its not possible to book on Delta, but it is on KLM. Odd.
Again, if you could provide the itin you are trying to book, it would likely be possible to explain what the particular issue is here.