Civil Aviation Abbreviations and Acronyms

1. SOUTHWEST
   Southwest Airlines
2. CIR
   Circle Pacific fare
3. P
   First Class
4. MOU
   Memo of Understanding
5. J
   Business Class
6. COS
   Customer of Size
7. SAS
   Scandinavian Airlines System
8. c/n
   Constructor's Number
9. CASM
   Cost per Available Seat Mile
10. CASR
    Civil Aviation Safety Regulations
11. f
    Freighter
12. f
    First Class
13. J/C
    Business Class
14. MCT
    Minimum Connection Time
15. O&D
    Origin/Destination
16. O/W
    One Way
17. Q MILES
    Qualifying Miles
18. R/T
    Round-Trip
19. SATS
    Singapore Airport Terminal Services Ltd.
20. SSSS
    Selected for Secondary Security Screening

Last updated: May 23, 2020 — Total entries: 286