It's the first class cabin on the QANTAS A380. I found it funny that they made such a big deal about having to be on a 747, yet they used an A380 for the cabin.
MILD SPOILER ALERT:
Given that the airline doesn't come off so well in the film (at least in terms of passenger safety and security) I wonder if the initial plan was to make it product placement but then when QANTAS saw the finished product they demanded that their name and references to the A380 be removed.