A specially painted plane of Qantas makes a 100-minute celebration flight over Sydney, Australia, Nov. 16, 2020, to mark the centennial of the airline. It has been 100 years since Australia's national airline Qantas was founded, making it one of the oldest continuously-operating airlines in the world, with a special place in the hearts of Australians. (Photos: Xinhua)

A specially painted plane of Qantas makes a 100-minute celebration flight over Sydney, Australia, Nov. 16, 2020, to mark the centennial of the airline. It has been 100 years since Australia's national airline Qantas was founded, making it one of the oldest continuously-operating airlines in the world, with a special place in the hearts of Australians.

A specially painted plane of Qantas makes a 100-minute celebration flight over Sydney, Australia, Nov. 16, 2020, to mark the centennial of the airline. It has been 100 years since Australia's national airline Qantas was founded, making it one of the oldest continuously-operating airlines in the world, with a special place in the hearts of Australians.

A specially painted plane of Qantas makes a 100-minute celebration flight over Sydney, Australia, Nov. 16, 2020, to mark the centennial of the airline. It has been 100 years since Australia's national airline Qantas was founded, making it one of the oldest continuously-operating airlines in the world, with a special place in the hearts of Australians.

A specially painted plane of Qantas makes a 100-minute celebration flight over Sydney, Australia, Nov. 16, 2020, to mark the centennial of the airline. It has been 100 years since Australia's national airline Qantas was founded, making it one of the oldest continuously-operating airlines in the world, with a special place in the hearts of Australians.

A specially painted plane of Qantas makes a 100-minute celebration flight over Sydney, Australia, Nov. 16, 2020, to mark the centennial of the airline. It has been 100 years since Australia's national airline Qantas was founded, making it one of the oldest continuously-operating airlines in the world, with a special place in the hearts of Australians.

A light show is staged at the Harbor Bridge in Sydney, Australia, Nov. 16, 2020, to mark the centennial of Qantas. It has been 100 years since Australia's national airline Qantas was founded, making it one of the oldest continuously-operating airlines in the world, with a special place in the hearts of Australians.