KUP7 fares that book into first on 3 class transcons
I just booked LAX-JFK-SJU-JFK-LAX for later this summer and lo and behold, an instant upgrade fare appeared for $607 each way that booked into A on the outbound transcon and D on the inbound transcon. Typically, YUP-type fares book only into business class, but this one is booking into First Class. Years ago, YUPs often booked into A, but AA wised up and embargoed the three class flights. Perhaps AA is relaxing those rules?