Originally Posted by
skunker
I'm not sure JFK-LAX-HNL-LHR works as the rules state you can't back track to CONUS. That means you have have to do US-Hawaii-Japan or US-Hawaii-Australia or vice versa. I don't believe the HNL-LHR will work, but would love to be proved wrong.
Also, you aren't using many F class flights. I would consider getting a DONE and using the savings for a couple bottles of champagne on the ground.
IIRC, there have been reports that AA refuses to ticket an itinerary with the LHR-HNL (or v.v.) segment if it includes backtracking to/from Hawaii. But BA will ticket. I don't what others OW airlines' position is on this.