Originally Posted by hfly

No, Delta is definately in the wrong, the Thai authorities would require no more than proff that you were leaving the country within 30 days (if they did at all, in my many thousands of trips over the years, no immigration official has ever asked me for proof of onward travel, they generally only ask those who look like degenerates) Delta cannot have more onerous rstrictions than those published by the country in question. If its good enough for the Thais, it has to be good enough for Delta.

If you have problems at check in, quote what I say above and print out the following and show it to them. This is what the Delta agents need to pay attention to as it is what is on their screen (note *****):

Visa required, except for A touristic stay of max. 30 days:
- for holders of normal passports, being nationals of the
U.S.A.(except passports issued in the Marshall Islands);
Additional Information:
- All passports must be in good condition.
- Those travelling to Thailand with a visa issued prior to
arrival, are permitted to travel on a one-way ticket.
*******- It is strongly recommended to hold documents for next
destination as passengers may be subject to random checks.*********