Video: Qantas 747-400 departs Sydney Airport for the very last time

Monday morning's take-off of Qantas flight 747 was no ordinary departure - it was the last to take place from Sydney's Kingsford Smith International Airport.

Last month, Qantas confirmed it would be retiring all of its Boeing 747s effective almost immediately, and confirmed it would be operating a series of special flights so that fans could say goodbye to the most iconic aircraft of our time.

Fittingly, business class airfares were priced at AU$747, and economy fares at AU$400.

Qantas 747 Fleet Captain Owen Weaver said the 747 has a special place in the hearts of travellers around the world.

"Since the first 747 joined the Qantas fleet in 1971, these aircraft have operated numerous rescue flights to bring Australians home during times of crisis and provided a safe passage for many travellers taking their first international flight to or from Australia," Weaver said in a statement. 

"These farewell flights will offer the final opportunity to fly on the Qantas 747 before it leaves, with some of our frequent flyers and aviation enthusiasts as fond of the aircraft as we are, having spent thousands of hours onboard over the years." 

All profits from the flights will go to the HARS Aviation Museum at Albion Park and the Qantas Founders Museum in Longreach.