These flights are so long that pilots and flight attendants work on a rotating schedule, which means they need a place to sleep.
Most modern wide-body airliners used for long-haul international flights are equipped with crew rest compartments.
To make this route possible, Australia's national airline ordered a fleet of eight brand-new Boeing 787-9s.
Recently, Business Insider got the chance to preview Qantas' first new Boeing 787-9. As part of the tour, Qantas gave us access to the hidden crew rest compartments located above the main passenger cabin. Since these are areas of the aircraft that are strictly off-limits to the flying public, we simply couldn't say no.
Here's a closer look at the pilot and flight attendant crew rests on board the Boeing 787-9.
In October, Qantas took delivery of its first Boeing 787-9 Dreamliner. As part of the delivery ceremony, members of the media were allowed to tour the brand new jet.
Here's a look at the Dreamliner's state-of-the-art glass cockpit. Turn around ...
And you'll see the hidden doorway to the pilot's rest compartment. Since the Qantas Dreamliner does not have a first class cabin, the crew rest is located above the business class seats at the front of the plane.
Climb up the stars and you'll find...
.... Sleeping quarters for two pilots. Even though the Dreamliner requires only two pilots, airlines usually fly with four on its long-haul international routes, the main crew, and a relief crew.
Hidden at the rear of the Dreamliner's cabin is the flight attendant's crew rest. It's located above the main cabin between the economy class section and the aft galley.
Like the pilots' compartment, you'll need to climb up a narrow corridor.
Once inside, you'll find a cosy little compartment with room for six.
Here's a look down at the stairs from the inside the compartment.
At the back of the compartment are three forward-facing facing beds.
There's also one bed on...
...Each side of the compartment.
At the front of the compartment is another bed.
Since the Dreamliner is a smaller wide-body jet, its crew rests are not as spacious as larger aircraft such as the Boeing 777 or the Airbus A380.