# Distance from Atlanta (ATL) to Chiang Rai (CEI)

> 14,039 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,039 km / 8,723 mi / 7,580 nm
- **Estimated flight time**: 18h
- **Heading**: 355° (north)
- **Return heading**: 4° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Thailand
- **Intercontinental**: North America → Asia
- **Time difference**: +11h (When it's 09:30 in Atlanta, it's 20:30 in Chiang Rai)
- **Elevation difference**: 254 ft (CEI is higher than ATL)

## Airports

### [Hartsfield - Jackson Atlanta International Airport (ATL)](https://www.flightduration.online/airport/atl-atlanta-hartsfield-jackson-atlanta-international-airport/1ef266df-0f11-62ae-9978-06bb2780ed98)

- City: Atlanta, United States
- ICAO: KATL
- Timezone: America/New_York
- Coordinates: 33.640000, -84.430000
- Elevation: 1,026 ft

### [Chiang Rai International Airport (CEI)](https://www.flightduration.online/airport/cei-chiang-rai-chiang-rai-international-airport/1ef266df-f548-6b50-a273-06bb2780ed98)

- City: Chiang Rai, Thailand
- ICAO: VTCT
- Timezone: Asia/Bangkok
- Coordinates: 19.950000, 99.880000
- Elevation: 1,280 ft

## Route notes

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

Time-zone information: When it's 09:30 in Atlanta, it's 20:30 in Chiang Rai.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Hartsfield - Jackson Atlanta International Airport (ATL)](https://www.flightduration.online/airport/atl-atlanta-hartsfield-jackson-atlanta-international-airport/1ef266df-0f11-62ae-9978-06bb2780ed98)
- [Chiang Rai International Airport (CEI)](https://www.flightduration.online/airport/cei-chiang-rai-chiang-rai-international-airport/1ef266df-f548-6b50-a273-06bb2780ed98)
- [Flight duration calculator](/#calculator)