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Qantas is preparing to redefine long-distance air travel with plans to launch what is expected to become the world’s longest non-stop commercial flight, linking Sydney and London in a journey that could last as long as 22 hours.
The Australian airline’s ambitious “Project Sunrise” initiative is scheduled to begin operations in October 2027 using specially modified Airbus A350-1000ULR aircraft.
Covering approximately 17,015 kilometres (10,573 miles), the route will connect two cities on opposite sides of the globe without requiring passengers to change planes or stop for refuelling.
While the prospect of spending almost an entire day inside an aircraft may sound intimidating, Qantas says years of research, scientific testing and cabin redesigns have gone into ensuring passengers arrive in better condition than they would after a traditional one-stop journey.
The airline is not merely launching a longer route. It is attempting to rethink how people experience extremely long flights.
A route designed to break aviation records
The Sydney-London service will
surpass existing commercial non-stop routes in both distance and duration.
At present, the longest regularly scheduled direct passenger flight is operated by Singapore Airlines between Singapore and New York. That service covers approximately 15,349 kilometres (9,537 miles) and is typically completed in under 19 hours.
Qantas already operates one of the world’s longest flights between Perth and London, connecting Western Australia directly with the United Kingdom. That route covers around 14,499 kilometres (9,009 miles) and usually takes between 16 and 18 hours.
The planned Sydney-London operation extends the concept significantly. Unlike Perth, Sydney is located on Australia’s east coast, adding thousands of kilometres to the journey and creating operational challenges that few airlines have attempted to solve.
The airline believes many passengers will accept higher fares in exchange for avoiding a stopover. According to Qantas, direct travel between Sydney and London could reduce overall journey times by as much as four hours compared with itineraries involving a transit stop in Singapore.
For travellers who regularly move between Europe and Australia, the prospect of boarding one aircraft and remaining on it until arrival could eliminate airport transfers, security checks and lengthy waiting periods during connections.
The service also represents the culmination of nearly a decade of planning and research conducted under Project Sunrise.
Why a standard aircraft could not do the job
Flying more than 17,000 kilometres continuously requires substantial modifications to a modern airliner. To make the route viable, Qantas is using a customised version of the Airbus A350-1000 known as the A350-1000ULR, with ULR standing for Ultra Long Range.
The aircraft differs significantly from standard A350-1000 jets currently flying around the world.
Ordinarily, an A350-1000 can carry far more passengers than Qantas plans to accommodate on Project Sunrise flights. However, the airline has dramatically reduced capacity to just 238 seats.
A lower passenger count reduces overall aircraft weight while also creating room for additional fuel storage. The aircraft incorporates a specially installed 20,000-litre fuel tank that allows it to remain airborne for the extraordinary durations required by the route.
Powering the aircraft will be Rolls-Royce Trent XWB-97 engines, which have been selected to meet the performance demands of ultra-long-haul operations.
The reduced passenger capacity also reflects the commercial realities of operating flights lasting close to a full day. According to Sharon Petersen, chief executive officer of AirlineRatings, cargo opportunities become limited because weight must be prioritised for fuel.
“Because the flight is so long, they can’t rely on cargo because of the weight. So it really is a passenger-heavy aircraft and a premium passenger-heavy aircraft at that to get the profit margin,” Petersen told AP.
The aircraft’s layout therefore places considerable focus on premium cabins, which generate higher revenue per seat.
Industry observers note that operating such lengthy services involves additional challenges beyond fuel consumption. Airlines must also account for weather variations, route diversions and operational contingencies that become more significant when aircraft are flying continuously for nearly an entire day.
Some analysts have pointed to the success of Qantas’ Perth-London route as evidence that the business model could work on even longer sectors.
Qantas Chief Executive Vanessa Hudson has indicated that the airline expects to charge a premium compared with one-stop alternatives, drawing confidence from passenger demand observed on existing ultra-long-haul services.
Re-imagining passenger comfort for nearly a day in the air
The central question surrounding Project Sunrise has never been whether the aircraft can complete the journey. Instead, the challenge has been determining how passengers will physically and mentally cope with spending 20 to 22 hours on board.
To address that issue, Qantas redesigned almost every aspect of the cabin environment.
The airline’s aircraft will feature four distinct cabin categories.
At the front of the aircraft will be six enclosed First Class suites arranged in a 1-1-1 layout. These suites include separate reclining armchairs and dedicated flat beds measuring approximately 80 inches in length. Each suite also includes a personal wardrobe, giving travellers additional storage space during the extended journey.
Behind First Class will be 52 Business Class suites configured in a 1-2-1 arrangement. These seats feature privacy doors and fully flat beds, while adjustable dividers allow travellers seated in the centre section to customise their level of privacy.
Premium Economy will consist of 40 seats arranged in a 2-4-2 configuration. Qantas says these seats provide the most generous seat pitch currently available anywhere in its fleet at 40 inches. Additional calf supports and leg-rest systems have been incorporated to enhance comfort during long periods of sitting.
The largest section of the aircraft will contain 140 Economy seats arranged in a 3-3-3 configuration.
However, even Economy passengers are expected to experience a cabin environment that differs from many traditional long-haul flights.
Qantas says seat pitch will generally range between 33 and 34 inches, although a limited number of rows will offer 32 inches. These variations will be disclosed at the time of booking.
Part of the Economy section will be marketed as Economy Plus. The 42 Economy Plus seats are positioned toward the front of the cabin and provide 34 inches of seat pitch, along with priority boarding and dedicated overhead baggage space.
According to Petersen, Economy passengers on the Sydney-London route will benefit from greater legroom than that offered by many long-haul competitors.
The airline has also developed custom seating featuring multi-layer memory foam cushioning intended to reduce pressure points and improve comfort over extended periods.
In addition, wool-based upholstery has been selected because of its temperature-regulating properties, helping maintain comfort during a flight that spans almost an entire day.
The Wellbeing Zone: A new approach to long-haul travel
Perhaps the most innovative feature of Project Sunrise is the introduction of a dedicated Wellbeing Zone. Positioned between the Premium Economy and Economy cabins, the space has been designed to encourage movement during the flight.
Medical experts have long warned that extended periods of immobility can increase the risk of deep vein thrombosis (DVT) and contribute to fatigue, stiffness and discomfort.
Qantas sought to address those concerns by creating an area where passengers can leave their seats and engage in light physical activity.
The Wellbeing Zone includes stretching supports built into wall structures, allowing passengers to perform movements safely while the aircraft is in flight. Large digital displays will provide guided exercise routines and movement programs developed with input from sleep researchers and health experts.
Passengers will also have access to hydration stations stocked with water and refreshments intended to help combat dehydration and digestive discomfort.
The concept survived a lengthy design process that saw several more ambitious ideas abandoned.
Cabin designer David Caon revealed that he initially explored options including exercise bicycles and yoga spaces. Ultimately, those concepts were not included in the final design.
The Wellbeing Zone remained because it balanced practicality with passenger wellness.
“I wanted to recreate the sense of lying by the swimming pool,” Caon told Reuters.
The area will feature carefully designed lighting intended to create a calming atmosphere while encouraging passengers to move around during the journey.
Fighting jet lag through science
Beyond physical comfort, one of the biggest obstacles facing ultra-long-haul aviation is jet lag. A flight between Sydney and London crosses multiple time zones, creating significant disruption to the body’s internal clock.
Qantas therefore partnered with the University of Sydney’s Charles Perkins Centre to examine how aircraft environments could help passengers adjust before arrival.
“It’s a major biological challenge crossing all these time zones – seven to nine for London and 14 to 16 for New York,” Peter Cistulli, professor of sleep medicine at the University of Sydney, who took part in scientific research for “Project Sunrise”, told Reuters.
The research programme looked at a wide range of factors, including nutrition, sleep patterns, movement and cabin lighting.
One major focus involved determining how meal timing could influence alertness and fatigue.
Researchers found that altering food schedules and avoiding certain meal patterns immediately after departure could help passengers adapt more effectively.
“By optimising meal times – such as avoiding food just after takeoff – and creating a “protective sleep window” with the help of lighting, passengers showed better alertness during tests than with a traditional service,” Cistulli said.
Lighting emerged as one of the most important elements in the research. The aircraft will incorporate multiple lighting sequences that gradually change throughout the flight.
These settings are intended to simulate different phases of a natural day, including sunrise and sunset, helping travellers align their body clocks with local time at their destination.
Qantas has developed a sophisticated system featuring numerous lighting scenarios that slowly alter colour tones and intensity levels during the journey.
Caon said the programming process required extensive work and drew inspiration from Australian landscapes.
The airline will also provide a digital journey-planning tool through seatback entertainment systems. This feature will allow passengers to see when meals are scheduled and when lighting conditions will change, helping them organise their sleep and wake cycles more effectively.
Rather than simply transporting passengers across time zones, Qantas hopes the aircraft environment itself will help prepare them for arrival.
Will passengers pay more for convenience?
A major question surrounding Project Sunrise is whether travellers will accept the higher fares likely to accompany such a specialised service. Qantas has acknowledged that ticket prices will exceed those of one-stop alternatives.
The airline’s strategy is based on the belief that passengers will value time savings, convenience and the elimination of airport connections.
Frequent travellers interviewed about the project offered differing perspectives. Paris-based drinks industry professional Sam Davies said avoiding stopovers held considerable appeal.
“There is something wonderful about waking up in Australia and not having to get off anywhere and go through security and kill three hours, so I am all up for it,” he told Reuters.
However, he also emphasised the importance of seat comfort.
“I am six-foot-four (193 cm) so the economy seat is too small…I would have to ask for some more details on the seats,” Davies added.
Melbourne-based executive Ian Morden was less concerned about flight duration itself but questioned whether the financial premium would be worthwhile. “A slight premium would be justifiable but…I probably wouldn’t choose it for a 20% premium on an already much more expensive business-class flight,” he told Reuters.
London-based traveller Nathalie Curtis suggested the flight would appeal if the promised health and comfort measures prove effective. “If it allows you to move around, reduce jet lag with lighting adjustment and is hygienic and saves … four hours then I would go for it and pay a 20% premium,” she told Reuters.
Meanwhile, Australian strategic adviser Mark Levine highlighted the broader impact on international lifestyles. “The distance doesn’t change but the journey feels a little smaller,” he told Reuters.
Not everyone is convinced that spending up to 22 hours in Economy will be attractive.
Petersen expressed reservations about the experience. “The reason for that is 22 hours is really daunting. If you get sat next to someone who’s smelly, is perhaps really unwell and coughing, perhaps there’s a baby sitting next to you that’s having an uncomfortable flight or an oversized passenger who really needs two seats,” Petersen said.
She added that breaking a journey into two separate segments could sometimes provide a more comfortable experience. “If you’ve got it wrong on one flight, you might be okay on the next. You get a break,” she said.
With inputs from agencies
