Sounds like he was on a mileage run and taking advantage of:

27N . 3. 1 INTERCONTINENTAL DEPARTURE AND 1
28N . . INTERCONTINENTAL ARRIVAL PERMITTED IN EACH
29N . CONTINENT EXCEPT AS FOLLOWS:
30N .
31N EXCEPTIONS:
32N .
33N .
34N . A. 2 PERMITTED IN NORTH AMERICA. 1 MUST BE A
35N . TRANSIT WITHOUT STOPOVER BETWEEN SOUTH
36N . AMERICA AND ANOTHER CONTINENT.

I don't think he stopped in LAX or JFK.