There are flights out of Seattle, Los Angeles, Dallas, Chicago, Boston, and New York.
The JAL Sky Suite III is used.
Japan is closed to visitors through the end of February, so this might seem like a strange time to plan travel. JAL Sky Suites are open and all of the award fares are easy to cancel. JAL services almost their entire Asian and Pacific route map from multiple US airports.
The Alaska Mileage Plan has the option of a free stop in Tokyo for four if you use it in September.
If you are a newly-minted AA Quadrillionare, you can take Dallas to Delhi for just 23 hours in JAL Business for 70,000 AAdvantage miles.
Same thing on AA for Dallas to Delhi.
I was unable to find a city combination from the US to Asia serviced by JAL.
How to make a reservation.
There are many ways to book a JAL flight.
60K one-way to North Asia, with the option of a free stop in Japan or Seattle.
65K one-way to South Asia, plus a free stop each way.
60K one-way to/from North Asia.
70K one-way to/from South Asia.
JAL has the best rates at 50K one-way to Japan, but they don't partner with any transferrable currencies so miles can be difficult to come by.
Quick thoughts.
JAL has some of the most enjoyable Business and First Class product out there.