# Distance from Hanoi (HAN) to Chicago/Romeoville (LOT)

> 12,883 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,883 km / 8,005 mi / 6,956 nm
- **Estimated flight time**: 16h
- **Heading**: 12° (north northeast)
- **Return heading**: 346° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Vietnam) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12h (When it's 02:25 in Hanoi, it's 14:25 in Chicago/Romeoville)
- **Elevation difference**: 640 ft (LOT is higher than HAN)

## Airports

### [Noi Bai International Airport (HAN)](https://www.flightduration.online/airport/han-hanoi-noi-bai-international-airport/1ef266df-f632-63cc-97d4-06bb2780ed98)

- City: Hanoi, Vietnam
- ICAO: VVNB
- Timezone: Asia/Ho_Chi_Minh
- Coordinates: 21.220000, 105.810000
- Elevation: 39 ft

### [Lewis University Airport (LOT)](https://www.flightduration.online/airport/lot-chicagoromeoville-lewis-university-airport/1ef266df-27f2-6ae8-ad74-06bb2780ed98)

- City: Chicago/Romeoville, United States
- ICAO: KLOT
- Timezone: America/Chicago
- Coordinates: 41.610000, -88.100000
- Elevation: 679 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 02:25 in Hanoi, it's 14:25 in Chicago/Romeoville.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Noi Bai International Airport (HAN)](https://www.flightduration.online/airport/han-hanoi-noi-bai-international-airport/1ef266df-f632-63cc-97d4-06bb2780ed98)
- [Lewis University Airport (LOT)](https://www.flightduration.online/airport/lot-chicagoromeoville-lewis-university-airport/1ef266df-27f2-6ae8-ad74-06bb2780ed98)
- [Flight duration calculator](/#calculator)