# Distance from Chiang Rai (CEI) to Dorval (YUL)

> 12,712 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,712 km / 7,899 mi / 6,864 nm
- **Estimated flight time**: 16h
- **Heading**: 355° (north)
- **Return heading**: 7° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → Canada
- **Intercontinental**: Asia → North America
- **Time difference**: -11h (When it's 06:43 in Chiang Rai, it's 19:43 in Dorval)
- **Elevation difference**: 1,162 ft (YUL is lower than CEI)

## Airports

### [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

### [Montréal / Pierre Elliott Trudeau International Airport (YUL)](https://www.flightduration.online/airport/yul-dorval-montreal-pierre-elliott-trudeau-international-airport/1ef266de-b315-619e-b7a7-06bb2780ed98)

- City: Dorval, Canada
- ICAO: CYUL
- Timezone: America/Toronto
- Coordinates: 45.470000, -73.740000
- Elevation: 118 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 06:43 in Chiang Rai, it's 19:43 in Dorval.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Chiang Rai International Airport (CEI)](https://www.flightduration.online/airport/cei-chiang-rai-chiang-rai-international-airport/1ef266df-f548-6b50-a273-06bb2780ed98)
- [Montréal / Pierre Elliott Trudeau International Airport (YUL)](https://www.flightduration.online/airport/yul-dorval-montreal-pierre-elliott-trudeau-international-airport/1ef266de-b315-619e-b7a7-06bb2780ed98)
- [Flight duration calculator](/#calculator)