Pricewise I think you just have to check all airlines for the best deal. Legroom is also worth considering if you are going to do this journey without a stopover.
Also check Expedia for prices and try Trailfinders who might find a better deal.

Hi:

I have just booked my flights to Perth from Manchester, we got prices from Emirates, Singapore and Cathay... Emirates was cheaper hands down, but the original cost to book direct was £900 each or there abouts, with expedia, it was £750, our final price was £670 each with ebookers.com stopping in Dubai airport for a connection 2 hours later (just enough time to have a walk around.)

Also try majortravel. they seem cheap, unfortunatly, they had sold out when we had our holiday weeks confirmed from work...

Shop around, I'd imagine it would be a lot more for when you want to go as it is their summer and over the xmas holidays.

good advice dramaqueen- shop around for the best deals.

I paid £659 from Travel Moods for my flight with Emirates from Manchester to Perth, via Dubai.
Singapore were slightly more expensive at £900 odd, but I have found it fluctuates sometimes daily, as I missed out on a flight with Singapore Airlines for £699, literally overnight.They went from £699 to £900 odd overnight, I was gutted, as I love flying with them.