Join Date: Dec 2002
Location: Washington, DC, Chapel Hill, NC (RDU)
Programs: DL Plat (won't hit DM again) 2MM (2.5), HH Gold, PC Gold, Hyatt Plat
Posts: 5,626
Not sure how long they've been flying it, but it seems timed perfectly to connect with the NRT flights -- arriving from LAS in time to make connect to NW 1 and heading back to LAS in time to allow NW 2 passengers to clear immigration and customs in LAX and make the connection. And not quite as good a connection to the HNL flights, but not too bad.
I'd guess the airplane arrives in LAS from one of the hubs about an hour before departing for LAX and heads back to one of the hubs from LAS.