HK Express 退 款 幾 耐關於「HK Express cancel online Check in」標籤，搜尋引擎有相關的訊息討論：
Online Check-in | Web or Mobile App - HK Expresswww.hkexpress.com › en-hk › your-trips › online-check-inFAQ (Check-in) - HK Expresswww.hkexpress.com › en-hk › need-help › customer-careHK Express | Hahn Air Lineswww.hahnair.com › carrier去到機場先叫地勤PRINT OUT登機證得唔得呢？ - Facebookzh-tw.