OK, I searched on the Internet and found that online dictionaries give the following pronunciation of Thailand as /ˈtaɪ.lænd/.
Cambridge English Dictionary says
noun /ˈtaɪ.lænd/
Oxford Dictionaries says:
Pronunciation: /ˈtʌɪland/
However, based on the audio excerpts, I feel that Thailand should be pronounced as /ˈθaɪ.lænd/.
I managed to record myself pronouncing "Thailand" as:
I think some dictionaries do not have the correct pronunciation.
So, should "Thailand" be pronounced as /ˈtaɪ.lænd/ or /ˈθaɪ.lænd/?
Extra info: Now listen to this video and hear the difference between thigh /θʌɪ/ and tie /tʌɪ/. See at 0:46 on YouTube