An A350 jet being developed for record-setting commercial flights landed in France from Melbourne on Tuesday after Airbus completed a test flight lasting more than 24 hours, drawing heavy attention from online flight trackers.

The test marks a key step in Qantas' Project Sunrise, which ​aims to launch the world's ​longest commercial ⁠passenger services and reshape long-haul travel by eliminating stopovers between Australia and Europe.

The specially adapted A350-1000ULR airliner is due to debut with the Australian carrier's nonstop Sydney-London route from 2027. Airbus has been conducting a two-month test campaign on the aircraft since June.

Airbus said the aircraft, which boasts a specially designed extra fuel tank, remained in the air for 24 hours ⁠and ⁠24 minutes, covering 23,075 kilometers (14,338 miles) without stopping, before landing at the plane's factory in Toulouse, France.

Flight-tracking provider Flightradar24 said the trip was the second-most-tracked flight ever on its channels, behind a 2024 flight carrying Queen Elizabeth II's coffin, with more than 3.6 million people following its progress northward via Canada.