This is an award ticket from United, and my United itinerary reflects both flights, so I would think that the bag would be transferred without me having to claim an re-check. I will have all the miles I need for United 1K at that point, so I finally get to use miles to get first class. When I got the ticket, the Thai flight was the only one available, but as the date grows near, I'll check for alternative. Thank you for the info. Knowing the time will be tight is what I wanted to know.