Why are low cost airlines so cheap?

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Tags

1. #airline
2. #occasionally
3. #cheaper
4. #ryanair
5. #expensive
6. #flights
7. #easyjet
8. #typically
9. #normal
10. #generally
11. #sheer
12. #european
13. #budget
14. #flight
15. #success
16. #euros
17. #price
18. #offer
19. #europe
20. #their
21. #passenger