Well, used 757's are hard to come by. FedEx can't get enough of them, and spending all kinds of money on them to update the panels. However, we did pull some planes out of the desert because of the Max groundings, P&W PS planes.

The addition of winglets has made them a true trans-Atlantic plane. The RJ of the Atlantic. You can't get a 300. The smaller planes, guppies and A320's and NEO's can do about 90% of what the 757 will do, but that last few percentage points, nothing can touch. Long legs out of short runways. The Max will never do it, and the A321XLR is close, but won't be able to do a short runway--and won't be available for quite a while.

So, yes, the 757 seems efficient enough for those routes. Don't know who you have been talking to about the viability of the 757's. Time is their enemy. Old panes increasingly will be problematic, especially parts.

UAL got rid of most of the P&W planes because Smizec wouldn't spend money on them to update them. Not because they were not efficient enough. Again, FedEx was happy to take our planes.

Before you start, I wouldn't use UAL as an example of what to do with fleets. We are still un-Jeffing the airline.