I am nervous about a self transfer I arranged on my own. On Feb 18 (a Saturday), I fly Thai Smile from Luang Prabang (Laos) which arrives nonstop to BKK at 12:55 (per Flight Aware actual landing times average 12:20). I may or may not have checked bag- depending on what souvenirs I acquire). My second flight from BKK is SQ Business to Singapore that departs at 15:40. Is this 3 hour timeframe appropriate and relatively low risk? Would SQ put us on a later flight if we miss for some reason? (There are 3 additional SQ departures later in the day). As a side note, this Thai Smile flight to BKK is the earliest possible departure time from LPQ)