# Distance from Hanoi (HAN) to San Diego/El Cajon (SEE)

> 12,482 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,482 km / 7,756 mi / 6,740 nm
- **Estimated flight time**: 16h
- **Heading**: 38° (northeast)
- **Return heading**: 317° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Vietnam) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -14h (When it's 00:17 in Hanoi, it's 10:17 in San Diego/El Cajon)
- **Elevation difference**: 349 ft (SEE is higher than HAN)

## Airports

### [Noi Bai International Airport (HAN)](https://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

### [Gillespie Field (SEE)](https://flightduration.online/airport/see-san-diegoel-cajon-gillespie-field/1ef266df-37ed-6bfa-aaaa-06bb2780ed98)

- City: San Diego/El Cajon, United States
- ICAO: KSEE
- Timezone: America/Los_Angeles
- Coordinates: 32.830000, -116.970000
- Elevation: 388 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 00:17 in Hanoi, it's 10:17 in San Diego/El Cajon.
With a 14-hour time difference, expect significant jet lag.

## Related

- [Noi Bai International Airport (HAN)](https://flightduration.online/airport/han-hanoi-noi-bai-international-airport/1ef266df-f632-63cc-97d4-06bb2780ed98)
- [Gillespie Field (SEE)](https://flightduration.online/airport/see-san-diegoel-cajon-gillespie-field/1ef266df-37ed-6bfa-aaaa-06bb2780ed98)
- [Flight duration calculator](/#calculator)