In 2026, combining miles from different people is possible through "Points Pooling" or "Family Sharing" programs, but the availability depends entirely on the airline. Major carriers like United Airlines, British Airways, JetBlue, and Air Canada (Aeroplan) offer free pooling where family members or friends can link accounts and share a common balance. For example, Aeroplan allows up to 8 members to share points. Some programs, like Emirates "My Family," allow you to pool future miles but not existing ones. However, many "Big Three" US carriers like American and Delta generally do not allow free pooling; instead, they allow you to "transfer" miles between accounts for a significant fee (often $0.01 per mile plus processing fees), which is usually poor value. Always check if your specific airline offers a "Household Account" before paying for a transfer, as these free options are becoming more common to help families reach award flight thresholds faster.