that is a tough one, yet lets try to think like an MBA, an exec from RyanAir - with Starship payload to LEO of 100ton+ (and actually we need less than LEO) and pressurized volume of 1000m3, the Boeing 747 would be a close match, so giving the very short flight time we can do a really tight cattle class of like 500 passengers, which brings us into the vicinity of $10K/ticket :) I wonder whether we're reaching the stage where suborbital will start to put out the very long distance passenger air out of business the same way like long distance passenger air put out of business the long distance passenger ships.