I believe the plan from SpaceX is for point to point ballistic travel in a rocket carrying ~100 people, not going via something in orbit.
Flight times of an hour from anywhere on the planet to anywhere IIRC
Flight times of an hour from anywhere on the planet to anywhere IIRC
A 1 hour US to Asia route that charged 50k a seat could likely be viable. That’s ultra first class, but finding ~100 passengers each way per day should be easy. It’s only expanding to more routes that would be problematic.
PS: The fuel costs would actually be comparable to a regular flight. It’s mostly a question of how many trips the rocket could make and how many passengers it could carry.