# IATA 3-Letter Airport Code & Metropolitan Area Standard
> Validate and resolve 3-letter IATA airport and metropolitan destination codes.

- **Canonical URL:** https://stanzaapi.com/tools/iata-validator/standard/iata-airport-codes
- **Governing Standard:** IATA Resolution 600a & Resolution 722e (International Air Transport Association (IATA))
- **Latency:** <1ms Edge
- **Privacy:** In-memory execution only (zero data stored or logged)

## Technical Overview & Governing Rules
IATA 3-letter airport location identifiers designate airports and metropolitan areas worldwide for flight ticketing, baggage handling, and cargo manifests.

## Specification Matrix
| Code | Airport Name | City | Country |
| --- | --- | --- | --- |
| JFK | John F. Kennedy International | New York | United States |
| LHR | Heathrow Airport | London | United Kingdom |
| DXB | Dubai International Airport | Dubai | United Arab Emirates |
| HND | Haneda Airport | Tokyo | Japan |

## Standard JSON Response Model
```json
{
  "iataCode": "JFK",
  "name": "John F. Kennedy International",
  "city": "New York",
  "country": "US"
}
```

## Frequently Asked Questions & Edge Cases
### Q: What is the difference between IATA and ICAO airport codes?
**A:** IATA codes are 3 letters used for commercial passenger and cargo ticketing; ICAO codes are 4 letters used for air traffic control and flight operations.