Connection
Connecting rooms
Connecting flight
Conjunction ticket
Concierge
Computerized Reservation System
Combination
Code-share
COC – Country of commencement
COB – Close of Business
Coach
Co-terminals
Club ticket
Club floor
CLIA – Cruise Lines International Association
Class of service
City terminal
City pair
City break
Circle pacific
Churning
Child
Check-out
Check-in