What is the ICAO code for London Heathrow?

What is the ICAO code for London Heathrow?

• A. LHR
• B. LFPG
• C. EGLL
• D. LEMD

Answer: (C)

ICAO airport codes are four-letter designations used mainly for air traffic control and flight planning. The first two letters indicate the country or region, and the remaining two identify the specific airport. In the United Kingdom, ICAO prefixes start with “EG.” London Heathrow’s four-letter code is “EGLL,” with the final two letters assigned to that airport. This distinguishes it from Paris Charles de Gaulle (LFPG) and Madrid-Barajas (LEMD). The three-letter code shown for Heathrow (LHR) is the IATA code, used by passengers and airlines for tickets and schedules, not for ATC or flight plans. So the ICAO code for London Heathrow is EGLL.