British billionaire Richard Branson flew into space Sunday aboard a Virgin Galactic vessel, a voyage he described as the "experience of a lifetime" -- and one he hopes will usher in an era of lucrative space tourism.

The mission's success allowed the swashbuckling septuagenarian to one-up fellow tycoon Jeff Bezos -- who owns space company Blue Origin and is set to launch on July 20 -- in the race to the final frontier.

Virgin Galactic spaceship
Inside the cabin of Virgin Galactic's spaceship Photo: Virgin Galactic / Handout

"I have dreamt of this moment since I was a kid, but honestly nothing could prepare you for the view of Earth from space," Branson said, grinning during a post-flight ceremony where he and crewmates received their astronaut wings, before popping open the champagne to celebrate.

Branson, three fellow passengers and two pilots (all Virgin employees) breached the US-recognized boundary of space, reaching an altitude of 53.5 miles (86 kilometers) and experiencing weightlessness for a few minutes aboard the VSS Unity.

The spaceplane then lowered its wings and glided down to the ground at around 9:40 am Mountain Time (1540 GMT), about an hour after it had taken off attached to the belly of a massive carrier plane, which ascended 10 miles (15 kilometers) before dropping its payload.

Richard Branson
Billionaire Richard Branson will take off from the Spaceport America base in New Mexico Photo: Virgin Galactic / Handout

The rocket-powered Unity achieved a top speed of Mach 3 as it soared to space.

"Congratulations to all our wonderful team at Virgin Galactic for 17 years of hard, hard work to get us this far," Branson said during an intermittent live feed as Unity descended, calling it the "experience of a lifetime."

The patchy video transmission was the only blemish on an otherwise drama-free flight, and more inflight footage is expected to be released later on.

Virgin Galactic spaceship
After climbing to 50,000 feet (15 kilometers), VSS Unity ignites its rocket-powered engine to ascend at Mach 3 beyond the 50 miles (80 kilometers) of altitude considered the edge of space Photo: Virgin Galactic / Handout

Branson scooped up his grandchildren and hugged loved ones after the trip.

SpaceX boss Elon Musk, who came to watch the flight, quickly tweeted, "Congratulations, beautiful flight!"

NASA also congratulated the team, calling the flight "spectacular, indeed."

Jeff Bezos, Richard Branson
The competition in the space tourism sector, whose imminent advent has been announced for years, has come to a head this month; Jeff Bezos (left) is set to fly just days after Richard Branson (right) Photo: AFP / MANDEL NGAN

Branson, the consummate showman, also unveiled a Willy Wonka-esque competition for space enthusiasts to win two free tickets on Virgin Galactic flights through the website Omaze -- and a persona guided tour of Spaceport America.

"I promise lots of chocolate," he joked, comparing himself to the beloved Roald Dahl character.

Virgin Galactic spaceship
Graphic showing the projected flight stages of Virgin Galactic when it begins operating to carry space tourists. Photo: AFP / John SAEKI

Several tourists journeyed to the International Space Station in the 2000s, but on Russian rockets.

Richard Branson
British billionaire Richard Branson calls his trip to the edge of space the 'experience of a lifetime' Photo: Virgin Galactic/Handout

Branson's official role is to evaluate the private astronaut experience to enhance the journey for future clients.

The 70-year-old founder of Virgin Group, which today has interests in everything from commercial aviation to fitness centers, is known for his appetite for adventure and has set world records in hot air ballooning and boating.

He founded Virgin Galactic in 2004, but the dream almost came to an end in 2014 when an in-flight accident caused the death of a pilot, considerably delaying the program.

Since then, VSS Unity has successfully reached space three times, in 2018, 2019 -- which included the first crew member who wasn't a pilot -- and finally in May this year.

Sunday's flight left from Spaceport America, a huge base built in the Jornada del Muerto desert, around 20 miles southeast of the nearest town, Truth or Consequences.

Financed largely by the state of New Mexico, Virgin Galactic is the principal tenant.

After Sunday, Virgin Galactic plans two further flights, and then the start of regular commercial operations from early 2022. The ultimate goal is to conduct 400 flights per year.

Some 600 tickets have already been sold to people from 60 different countries -- including Hollywood celebrities -- for prices ranging from $200,000 to $250,000.

Branson hopes to expand that through the competition for free tickets, "so lots of people who couldn't otherwise have afforded to go to space, go to space."

The competition in the space tourism sector, whose imminent rise has been announced for years, has come to a head this month.

Bezos, the richest person in the world, is due to fly nine days from now on Blue Origin's New Shepard rocket.

Blue Origin posted an infographic Friday boasting the ways in which the experience it offers is superior.

Bezos posted a photo of Unity on his Instagram page after Branson's trip, offering his congratulations.

"Can't wait to join the club!" he wrote.

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NASA