While Singapore Airlines rarely hands out free upgrades, Solitaire PPS Club members can enjoy one on their birthday. Here's how it works.
The post How the Solitaire PPS Club’s secret birthday upgrade perk works appeared first on The MileLion.
source: https://milelion.com/2024/05/12/how-the-solitaire-pps-clubs-secret-birthday-upgrade-perk-works/