I think those values would make it viable for a few routes, but what really matters is long term savings. Like if they can fly supersonic overland and increase fuel efficiency more than traditional sub-sonic jet engines.

To me it seems if those numbers can't get better then the endeavor is not going to pay off the investment for the few routes that would be able to work at those numbers.

CONUS -> Honolulu -> East Asia or Australia will be a very viable setup. Especially if the refueling stop in Hawaii is well optimized for speed.

What’s Boom’s track record on accurately predicting final ticket prices?