JetBlue's TrueBlue is a frequent flyer program that rewards members with points for flights & everyday purchases, redeemable for flights, upgrades, & other rewards. Members can earn points not only by flying with JetBlue but also through partnerships with hotels, car rental services, & retail partners. The program offers multiple membership tiers, each providing additional benefits such as priority boarding, extra baggage allowance, & access to airport lounges.