I am thinking of taking UL flight with the route PVG - CMB - BKK as part of my round the world ticket. In order to get to PVG i would need to fly on separate ticket with JL. UL has only 1 flight per day and my connection time in PVG will be 2 hours 20 min, just shy of MCT of 2 hours. If I miss the UL flight due to delay on my previous flight and would need to reroute my flight to BKK via different connecting city (say, KUL or hKG) will this be treated as route change & ticket reissuance and incurring fee? Will the staff at the airport knowledgeable enough to do this whole thing? Just afraid as this would be midnight and PVG is not known as the most punctual airport...