Call 1-888-413-6950 If you'd like to manage your Singapore Airlines flight booking, Visit theairlinesinfo, where we also have a blog on Singapore Airlines Manage My Flight Booking.You can easily manage your own flight booking by following the steps in that blog, selecting Manage Trip, and filling out all the required information. If you need assistance managing your flight or are having issues, call our customer service number. They will be available to you 24*7.