Does anyone know if it's possible to make a same day layover in KIX with 2 separate tickets? I'm looking at LAX - KIX (JL) + KIX - SIN - BKK (SQ). I've read a lot of people talking about transiting in NRT with 2 separate tickets but don't think I've found any data points on KIX :/

Any suggestion would be greatly appreciated! Thanks!