I never had a situation occur which required me to check in luggage mid-journey. So here goes the question: I know I can do this by clearing immigrations and then go through check-in-security-reenter process ! I will be arriving on a different non-alliance carrier with a carryon, to SIN. Few hours (more like 5+ hours) later taking DL to US via NRT. Is it possible to check one of my bags at the DL transit desk Airside ? I want to avoid having to go Landside.