Airbus to perform ultra-long 22-hour test flight of A350-1000ULR to Australia

Airbus is gearing up to conduct an unprecedented ultra-long haul test flight of its new A350-1000ULR aircraft within the next week. The timing is set for the latter part of the upcoming week, although Airbus has yet to reveal the exact date or flight plan. This test flight is a crucial step in validating the aircraft’s endurance capabilities for sustained ultra-long-range operations. The A350-1000ULR is being developed specifically to serve the requirements of Qantas’ Project Sunrise, an initiative aiming to introduce nonstop flights between Sydney and London starting in October 2027.

The forthcoming test sortie will be approximately 22 hours in duration, covering the equivalent of the distance to Australia. Airbus indicated that this 22-hour flight represents about 25% of the total 75-80 hours of flight testing required for certification. Flight testing of the first A350-1000ULR, designated MSN707, began on June 2, 2026, marking the formal start of the type’s certification campaign. This latest ultra-long flight is an extraordinary endurance trial catering to the unique demands of nonstop ultra-long-range commercial aviation.

Although Airbus has confirmed the aircraft will fly to Australia for this test event, it has not disclosed the exact destination. Australian media outlets speculate that Melbourne will be the arrival airport, but neither Airbus nor Qantas has made official statements regarding the route or airport. The aircraft’s appearance in Australia for testing is a significant milestone toward the real-world deployment of Project Sunrise operations, which seek to break traditional range barriers on commercial airliners.

Project Sunrise is Qantas’ ambitious plan to operate the longest nonstop commercial routes in the world, connecting Sydney and Melbourne directly to London and New York. Such nonstop flights require advanced airframes capable of flying for 20-plus hours without refueling while maintaining operational efficiency and passenger comfort. The A350-1000ULR variant has extended fuel capacity and aerodynamic improvements tailored for these ultra-long missions, making it the preferred platform for Qantas’ vision.

The 22-hour endurance test flight will simulate conditions akin to the operational environment expected on Project Sunrise routes, assessing aircraft systems, fuel efficiency, crew performance, and passenger safety factors during extended cruising. These tests are vital for securing regulatory certification from aviation authorities, which mandate rigorous validation of any aircraft undertaking such unprecedented long-haul operations. Airbus’ commitment to this demanding test exemplifies the technological advancements needed to open future ultra-long-range air travel.

MSN707 remains the sole aircraft currently designated for these tests, and the flight campaign is still in early stages. As Airbus progresses through the 75-80 hours of planned test flights, data gathered will inform refinements to the aircraft's systems and support Qantas' preparations for schedule integration and crew training. Qantas has confirmed the A350-1000ULR is central to Project Sunrise but remains cautious on releasing detailed timelines or operational parameters beyond confirming testing phases.

While Airbus focuses resources on the technical and certification challenges, Qantas’ strategic intent is also shaping operational aspects such as route planning, airport handling, and passenger services tailored to ultra-long-haul demands. The successful certification and service entry of the A350-1000ULR could usher in a new era of non-stop intercontinental flights that redefine travel between continental Australia and the world’s key global hubs.

The imminent test flight serves as a tangible demonstration of Airbus’ capability to meet the extreme endurance and performance requirements posed by Project Sunrise. Its completion will be a significant milestone enabling Qantas to target the planned October 2027 launch date for direct Sydney-London services. The ongoing test program underscores the intense collaboration between manufacturer and operator to address the technical and operational complexities of ultra-long-range air travel.