Originally Posted by
Vuelos
I think the issue is that delta.com is unable to mix the booking classes.
Unless you don't want it to.
I was using Advanced Search to try to find an itinerary all in K so I do a mileage UG.
Delta.com kept returning itineraries with a mix of K, U, T... even though the Ks were there, as the telephone agent later determined.
I was never able to find on-line the itinerary the agent finally booked for me.