Originally Posted by
number_6
UA checkin cutoff is 60 min before departure, so you have 45 min from landing on Air Asia to clear immigration, customs and get up to departure. Slim to none chance flying an LCC. An easy connection if flying CX but probably impossible with Air Asia even if on time.
I would agree with this.
Take an earlier flight from Thailand, or even give up the current ticket you have and buy one on another airline that will allow you to through check bags from Thailand all the way to the USA.
Not worth losing your UA F ticket for the matter of a few minutes of time.