Some "thinking out-of-the-box" seasonal "sub-daily" destinations are: SCL, EZE and MEX.
There were rumors many months ago that AM was considering offering MEX-HNL flights on the 788. Obviously it was only rumors, but in connection with a hypothetical MEX-HNL flight, I have to wonder who would be in a better position to offer this flight: AM or HA? [..]
Which of these cities would have the best chance of sustainable, seasonal or sub-daily frequency? MEX, SCL, EZE, (and I'll also throw in, for good measure) ... BOG and GRU? I'm thinking of a few factors to consider:
1. catchment area
2. hub build-up of (potential) partner carriers
3. adequate number of moderate (or high) income earners in catchment area and/or that have affinity to that hub
4. the hub had service to Asia in the past
I am now thinking that GRU is a worthwhile bet. São Paulo used to have one-stop direct service by up to four distinct carriers (though not concurrently): KE to SEL, JL to NRT (or was it NH?), Varig to NRT and VASP to either SEL or NRT. All of these links are gone. Most, if not all, of these routes were 5th freedom with a stop on the West Coast.
HA could restore one-stop direct service to Japan or Korea! The distance for NRT/LAX/GRU is roughly equivalent to NRT/HNL/GRU. Keeping the flight number and airframe the same throughout, would be good for marketing/psychological reasons. NRT or KIX would be obvious top choices on the Asia-side, because SAO has the largest population of Japanese-heritage persons in the world, outside of Japan itself.