I am planning a trip to the US in January. Given Qantas changes on many flights from 4 classes to 2, I know Qantas has been allocating F seats to J pax and Y+ seats to Y pax. My question is which flights to / from LA are most likely to offer this or has Qantas now converted all the planes to 2 class? We are currently booked on A380 flights and I looked at the seat plans and seems to be economy only. If we switch to (eg) 107/108 will this be different? Hope this is not too jumbled. Thanks for your responses.