What do airline booking codes mean?

Related questions

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Tags

1. #wikipedia
2. #airlines
3. #staff
4. #identify
5. #numeric
6. #allow
7. #encyclopedia
8. #alphabetic
9. #applicable
10. #basis
11. #referred
12. #airline
13. #travel
14. #agents
15. #rules
16. #alpha
17. #often