What is special services Redc in indigo?

Related questions

1. What type of dye is Indigo?
2. Can I grow indigo?
3. What color is vintage indigo?
4. Is Indigo a Colour of the rainbow?
5. Is Violet darker than purple?
6. What emotion is the color indigo?
7. Is Indigo really in the rainbow?
8. What is fqt1 in indigo?
9. Where does Indigo grow?
10. Where does the Colour Indigo come from?

Tags

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2. #special
3. #flight
4. #through
5. #travelling
6. #indigo
7. #services
8. #service
9. #connecting
10. #airlines
11. #meaning