A Frequent Flyer Program is a loyalty program offered by airlines to reward customers for their continued patronage. Members earn points or miles for each flight they take, which can be redeemed for free flights, upgrades, or other travel-related benefits. These programs often have different tiers, allowing frequent travelers to enjoy additional perks as they accumulate more points. Many airlines partner with hotels, car rental services, and other travel-related businesses, enabling members to earn points even when not flying. Popular examples of these programs include those from major airlines like American Airlines, Delta Air Lines, and United Airlines.