Below was the non-stop/direct flight from Hong Kong back to US. (24 October) I only list out some of the arrival time that touch down around morning and early afternoon time.
I think the case of Phil and production take 23 October flight, and the F3 teams take 24 October flight are more likely to happen.
HKG-LAX
00:05 CX880
12:55 CX884 %%%%%% -11:00 arrival
16:35 CX882
18:10 AA192
HKG-SFO
00:30 CX872
11:15 UA862 %%%%%% -09:00 arrival
14:15 CX870 %%%%%% -11:50 arrival
23:30 SQ2
HKG-SEA
10:35 DL38 %%%%%% -08:05 arrival
HKG-JFK
00:30 CX888 (with 1 hour and a half stop in Vancouver) %%%%%% -07:00 arrival
09:15 CX830 %%%%%% -13:10 arrival
16:10 CX840
18:45 CX876
HKG-EWR
10:25 UA180 %%%%%% -13:55 arrival
HKG-ORD
11:40 UA896 %%%%%% -13:35 arrival
HKG-DFW
14:30 AA126
HKG-BOS
18:15 CX812
Boston and Dallas are gonna ruled out since the arrival time was around nighttime. Chicago might ruled out as well since the last season final leg went there.
I think they would held the final leg somewhere around west coast with high chance happen in Los Angeles, San Francisco, or Seattle.
I hope a full Seattle final leg happen on this season after the last season gave us a final leg that fully featured in Chicago.