Originally Posted by
ermintrude
No bags to check - just need a boarding pass - but do security allow you airside the night before an early morning flight? (I'm quite familiar with Changi airport but am unsure on this one - will be flying business UA - Intention is to have a nap at one of the transit hotels then maybe use the kris flyer silver lounge?
No ... unless you have your BP stamped by the check-in agent ... the initial security check will not let you go to immigration check and airside (transit area) without a same-day BP