After two flights and a 3.5 hour stop over in KL, we made it to Adelaide!
Our worries about Emily acting up and ruining our trip were VERY overrated. On the flight from London we got a bassinet, so she was able to sleep in that for about 9 of the 12 hours we were in the sky. As we took off at 10pm, this made for much relaxed (and sleepy) mum and dad, I can say! We didn't have to have her on our laps for any of the journey, apart from take off and landing.
From KL to Adelaide, there was an extra seat available so we switched with a couple and Em had her own seat. Not only that, they actually gave her her own meal as well! Not bad at all.
The only time she really acted up was the last bit of the flight to Adelaide. She'd obviously had enough and wanted to walk or crawl ... anything but be on that plane.
Now bring on the holiday.