For comparison these are the 1944 routes (also ATC) showing the northern track which followed the pre-war "China Clipper" flying boat ones (at that time to China); from Gen. Arnold's Feb. 1945 report to the Secretary of War ("Nandi" is Fiji).
The Navy contibution was considerable ferrying aircraft to Theatre on escort carriers, mostly "Casablanca" class CVEs.
Note. "Ellis Is." above should be Ellice.
Nick
ferry1944 by
Nicholas King, on Flickr