The Boeing 787-9 landed just after 5 in the afternoon, after covering 14,525km to arrive about 15 minutes early.
It is the second longest route in operation in the world after a 14,529km trip from Doha, Qatar, to Auckland, New Zealand, run by Qatar Airways.
Captained by Lisa Norman, was the longest Boeing Dreamliner flight in the world.
Qantas plans to introduce non-stop flights from Australia's east coast to Britain in the next few years.
"This is a truly historic flight that opens up a new era of travel".
The airline said the inaugural flight reduced total travel time by cutting out stopovers and by taking advantage of favorable winds on any given day without having to factor in a midpoint in the Middle East or Asia when choosing a flight path.
The maiden flight of a new nonstop regular passenger service between Australia and Britain has touched down at London's Heathrow Airport. "For the first time, Australia and Europe have a direct air link", says Qantas Group chief executive Alan Joyce, who was on board the flight (pictured below).
The firm hopes to routinely fly non-stop from Australia to London and NY by 2022, which would take 20 hours.
The Qantas Boeing 787-9 Dreamliner prior to take-off from Perth.
Mr Joyce added: "I'd like to specially recognise the support and cooperation of the Federal Government, the West Australian Government and Perth Airport".
Some passengers wore wear special monitors and devices so researchers from the University of Sydney could collect data on their sleeping and activity patterns, mental state, eating patterns and hydration before, during and after their long flight, Sydney's Daily Telegraph reported.
Australia hopes the direct routes will boost tourism.
But Singapore Airlines has provided the world's longest flight, travelling more than 15,300km from Singapore to NY on a direct route that was discontinued in 2013. But the airline plans to restart flights on the route, using the ultra-long range version of the Airbus A350.
The spending bill, which President Donald Trump signed on Friday, also includes grants to help schools prevent gun violence. The rallies come in the aftermath of the shooting at a high school in Parkland, Florida on February 14 that took 17 lives.
It also makes Dropbox's IPO the biggest for a tech company since Snapchat 's parent company Snap went public in March 2017. Dropbox provides free cloud storage, file synchronization and personal cloud feature along with client software.
The utility has noticed that, from an energy perspective, participation in Earth Hour has been declining in our province. Some of the world's most iconic landmarks like the Effile Tower will switch off lights.
President Donald Trump stated that he was ready to meet Kim Jong-un till May 2018 to discuss the current situation in the region. It would be the first such summit in 10-and-a-half years and the 3rd overall.
He can be held for up to 48 hours and presented to the Magistrates Court for indictment straight away if police seek charges. Another Sarkozy aide and former minister, Brice Hortefeux , was also questioned in connection with the irregularities.
He had been visiting Finland since Thursday, but slipped out of the Nordic country before Finnish police could detain him. Puigdemont had recently left Finland before authorities there could act on a European warrant against him.
The quality of the game was exquisite, the only disappointing part was that there wasn't enough goals for both the teams. Right at the start of the second half, Germany winger Julian Draxler came within a whisker of putting the hosts ahead.
He's showing reporters a sign that lists Saudi purchases and another of pending sales of military equipment to the kingdom. The top-secret information included United States intelligence on Saudi royals opposing the crown prince, the report said.
Investigators say the bodies of an Iowa couple and their two children have been found in a rented condo in Mexico . On March 16, the State Department provided a traveling advising caution tourists regarding traveling to Mexico.
However, overall the analysis found the proportion of preventable cases of cancer had fallen - from 42.7% in 2011 to 37.7%. Being overweight or obese is another risk factor for cancer , with 6.3% of cancer cases being linked to excess weight.
Bank of England keeps rates on hold, hints at May rise
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CBS Reporter Addresses Her Interview With Leonard Hamilton
The Seminoles got hot with 2:07 remaining in the game and went on a 10-2 run to pull within two points of the Wolverines. Loyola-Chicago is blowing away expectations that its Elite Eight matchup with Kansas State would be a close game.
Black Panther Is Biggest Superhero Movie of All Time in the US
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Palestinian teen gets prison for slapping Israeli soldier
They claim she has always been exploited by her family, who they accuse of using her to try to provoke Israeli soldiers on film. Ahed's arrest made worldwide headlines and rallied global support for her freedom, causing major embarassment for Israel .
Ricciardo hits out at penalty
Stewards, who also gave the Australian two penalty points, said the breach occurred during the day's second practice session at Albert Park .
Uber Crash Highlights Growing Safety Concern: Pedestrians
The camera which is installed in the vehicle does not perform well in dark but the radar and Lidar work efficiently in the dark. The technology's backup - the human test driver who was also in the vehicle at the time of the crash - also failed to react.
Fed hikes as 'dot plot' shifts upwards
Unemployment is now expected to fall to 3.8 percent this year and 3.6 percent in 2019, which would be the lowest level since 1969. So far, the Fed has been moving gradually to tighten monetary policy to prevent the world's largest economy from overheating.