Airport Codes Explained: Why Bengaluru Is BLR and Kochi Is COK (2026)
BLR comes from Bangalore and COK from Cochin, because IATA three-letter codes were assigned decades ago and stay fixed even when a city is renamed. Changing a code would ripple through tickets, timetables and baggage systems worldwide. Airports also carry a four-letter ICAO code, used by air traffic control rather than on your ticket. Updated […]
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