For April, July, August, and September 2022 there are plenty of dates with availability for two passengers on the Dallas – Hong Kong flight in first class at 84,000 AAdvantage miles apiece. Next year there may be hope of visiting Hong Kong, or of using this flight to connect onward in Asia on American’s partner Cathay Pacific.
Availability on American’s Dallas flight is great because it’s a useful connecting point for most of the country.