Certainly! Here are 10 ways that airlines make money other than transporting passengers:

1. Cargo transportation: In addition to passengers, airlines also transport cargo such as mail, packages, and freight. Cargo transportation can be a significant source of revenue for airlines, especially for those that specialize in freight or have established cargo divisions.
2. Maintenance, repair, and overhaul (MRO) services: Many airlines also offer MRO services to other airlines and aircraft operators. These services can include aircraft maintenance, repairs, overhauls, and inspections. MRO services can be a significant source of revenue for airlines, especially for those with extensive maintenance capabilities.
3. Loyalty programs: Airlines often have loyalty programs that reward frequent flyers with points or miles that can be redeemed for flights, upgrades, or other rewards. These programs can generate significant revenue through partnerships with hotels, car rental companies, and other businesses.
4. Aircraft leasing: Airlines may own or lease their aircraft, and many airlines also lease out their aircraft to other airlines or aircraft operators. Aircraft leasing can be a significant source of revenue for airlines, especially for those with large fleets.
5. In-flight services and products: Airlines often generate revenue through in-flight services and products, such as food and beverage sales, duty-free shopping, and entertainment. Some airlines also offer premium in-flight services such as lie-flat seats, private suites, and personal butler service, which can command higher ticket prices and generate additional revenue.
6. Maintenance and repair products: Airlines may also generate revenue by selling or leasing MRO equipment and products such as aircraft engines, avionics, and other components.
7. Ground handling and airport services: Many airlines provide ground handling and airport services such as baggage handling, fueling, catering, and ground transportation. These services can be a significant source of revenue for airlines, especially for those that operate at multiple airports.
8. Advertising and sponsorships: Airlines may generate revenue through advertising and sponsorships, such as selling ad space on their planes, in-flight magazines, or airport facilities.
9. Travel insurance and other travel-related services: Airlines may also generate revenue by selling travel insurance or other travel-related services, such as hotel bookings or car rentals.
10. Training and education: Airlines may offer training and education services to pilots, flight attendants, and other aviation professionals. These services can be a significant source of revenue for airlines, especially for those with established training facilities and programs.