That ticket price is very, very optimistic. With it's 1200 t of fuel, the starship eats 240 t of methane and 960 t of oxygen. The price for methane is around 80 cents per litre, 240 t is 520 m^3 ish, so thats $420 000. Oxygen on the other hand seems to cost $10.6/kg, giving you a number of $12 000 000. Rounds out to 12 million per a single fueling. If the Starship carries 40 people that's just enough to bring the fuel cost of the LEO -> Mars trip down to $300 000. The first trip to space must cost the same amount in Starship fuel only so that's at least $600 000 per person in fuel. And this is all ignoring the Super Heavy, which will probably raise the cost over a million, in fuel alone.