From www.2bangkok.com

Greetings from your US government.

Message to the Americans in Thailand - December 3, 2008

The Department of State is evaluating whether to charter aircraft to facilitate the onward travel of American citizens seeking to depart Thailand. Americans who would like to take a U.S. government chartered flight from Bangkok to another airport in the region, such as Singapore,where they would then make their own arrangements to connect to onward flights, are requested to read through this message and respond as noted below.

Under U.S. law, an American citizen receiving U.S. government transportation assistance
is required to pay for the cost of travel at the rate of the most recently available full fare economy ticket. Therefore, American citizens who choose to fly on this charter must either pay prior to departure with a personal check or sign a promissory note (an Emergency Loan Application and Evacuation document ) for the amount stated and reimburse the U.S. government for the flight within sixty days.

Cash and credit payments can not be handled by staff for these flights.

When I read this I wondered whether I could get them to fly me from the USA to Bangkok on the cuff. I'm good for the money. Really.