there are currently no commercial modes of transportation available for individuals to travel from Earth to the Moon or Mars. The cost and feasibility of such journeys depend on various factors, including technological advancements, infrastructure development, and mission planning.
Historically, the only manned missions to the Moon were conducted by government space agencies, such as NASA's Apollo program. These missions were exceptionally expensive and complex, involving specialized spacecraft and extensive support systems.
In recent years, there has been a growing interest in space exploration and the potential for commercial space travel. Private companies like SpaceX, Blue Origin, and others are actively working on developing technologies and systems to facilitate human missions to the Moon, Mars, and beyond. However, it is challenging to estimate the cost or determine the cheapest mode of transportation for such missions until they become more established and accessible to the public.
It's worth noting that current space tourism ventures, like suborbital flights or trips to the International Space Station (ISS), are still relatively expensive and are not aimed at interplanetary travel.