Other celebrities, including Angelina Jolie, Leonardo DiCaprio and James Cameron, have reportedly all purchased tickets to fly on upcoming space flights.
"I want to go to space," the 'Good Morning America' co-host said. "I think being there at the first launch, it really was mind-blowing."
"I would go up in a heartbeat. I think it's such exciting stuff," Buttigieg told the Economic Club of Washington, D.C., on Tuesday.
"It's exciting what's happening," Branson said Monday. "Space is absolutely essential for the world."
Australian company Vostok Space Beer is the creator of the first beer designed specifically for consumption in space.
On Sunday, the reusable rocket took off from the company's West Texas launch site and reached an altitude of 347,485 feet.
The company hopes it will be able to accommodate space-tourists by 2022.
Jeff Bezos' rocket company has released concept images of capsules that will take tourists to space.
The Amazon founder plans to launch tourists into space with Blue Origin within two years.