If you are intending to book your cheap flights to Thailand; be ware that these are heavily booked as per their increasing demand. So start looking out for one right now; and start comparing between the air lines and the travel agents who offer travel deals and Thailand flights. As per their strong competition with each other, they are continuously varying the prices so if you book now, (three four months prior to your departure date) then surely you would save a lot on your Thailand travel but be cautious! As you won't be able to come back to your native country, instead you will come back to Thailand.