NYC to Kuala Lumpur for $338 round trip with multiple travels dates available in January and February. Los Angeles to Kuala Lumpur for $344 round trip with availability during the same time frame. I don’t know if this is a mistake fare or not so if you decide to book the flight, hold off on making any non-refundable hotel bookings until your flight is confirmed. Below is an example from a search from NYC using Google flights:
ANA is one of only nine 5 star airlines according to SKYTRAX so this would be a very comfortable flight during the Trans-Pacific portion of the itinerary.