Because of the contentious protest against ruling party of Thailand Government, the main airport or gateway of the country Bangkok airport is closed. In fact the Opposition aassitators taken control of the airport and surrounding area roads highways. No flights are landing or taking off from this airport. 
Oppposition party, People’s Alliance for Democracy took over the departure area at Suvarnabhumi Airport in Bangkok, halting all outbound flights. Their demand is the resignation of present Prime Minister Mr. Somchai Wongsawat.
It is a complete chaos and confussion in the country. Law and order situation very low. Better not to choose Thailand as Vaction spot for the time being, at least for next 7 /8 weeks. If you have already sceduled your vacation, then you may choose MALAYSIA instead Thailand for this year.