Tonight I grabbed what appeared to be a great deal: Brisbane-Bangkok return on TG for $690 in April, BYOJet was $7 less than the closest competitor. I noticed they're having a sale for even cheaper flights for the coming months, also flying Thai Airways, with Phuket only a few dollars extra.
Brisbane - Bangkok $613
Brisbane - Phuket $616
(08/08-07/09, 03-31/10)
Melbourne - Bangkok $599
Melbourne - Phuket $607
(31/07-07/09, 03-31/10)
Sydney - Bangkok $617
Sydney - Phuket $620
(07/08-12/09, 03-31/10)
Perth - Bangkok $574
Perth - Phuket $576
(24/04-21/06, 24/7-21/09, 03-31/10)
All flights ex Australia are direct to BKK with connections to HKT.
Granted the weather isn't the absolute best at the times advertised, however I have never found it impacts too severely, at least not to disturb laying by a pool or beach with a cold Singha close at hand. Some great prices for a full service intercontinental journey.
Cheers.
Phuket, I might just have to go with you!