I was looking at flights for the 5th April to Khon Kaen from Sydney yesterday and it was 1200 return . Which I found very cheap being Songkran month for Thailand .. so I don't k ow how the pricing work to be honest
Western Union is great . And they only charge me 0.99 cent Aud to send 2000 dollars to Thai account and it's in there within 20 seconds of me pressing enter