How do travel agents make their money?

Related questions

1. How much does it cost to travel the world for 1 year?
2. Why are flights so expensive 2019?
3. What is the cheapest day of the week to fly?
4. Why are airfares so expensive 2019?
5. Do flight prices drop closer to date?
6. Will airline prices go down soon?
7. Do travel agents travel?
8. Are pilots paid well?
9. Which day is cheapest to book a flight?
10. What's the best day to book a flight?

Tags

1. #fares
2. #corporate
3. #airline
4. #mainly
5. #travelers
6. #addition
7. #business
8. #money
9. #private
10. #booking
11. #hotel
12. #service
13. #agencies
14. #travel
15. #commissions