Virgin Galactic said the world's first purpose-built commercial spaceport was "functional."
The company, owned by Sir Richard Branson, is transferring all of its space activities to Spaceport America in New Mexico.
So far, test flights – including the first successful launch of its tourism rocket aircraft into space last December – have been conducted in California.
More than 600 people have already paid £ 64.2 million to secure their Virgin Galactic maiden ticket purchases.
Virgin Galactic has now unveiled the interior of its Gateway to Space building at Spaceport America, which provides community space for future clients.
The company said it had opted for an "elegant, experiential concept," adding, "It was specifically designed to enable Virgin Galactic to create an unparalleled experience as its clients prepare for the journey of their lives before they graduate as astronauts. "
Chief pilot Dave Mackay said Virgin Galactic is about to embark on its long-delayed commercial service after the launch of VMS Eve launcher earlier this week.
The company merged with Social Capital Hedosophia and established itself as the first and only listed trading company human spaceflight Last month.