# Distance from Marathon (MTH) to Shenzhen (SZX)

> 14,509 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,509 km / 9,016 mi / 7,834 nm
- **Estimated flight time**: 18h
- **Heading**: 342° (north northwest)
- **Return heading**: 18° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 16:44 in Marathon, it's 04:44 in Shenzhen)
- **Elevation difference**: 8 ft (SZX is higher than MTH)

## Airports

### [The Florida Keys Marathon International Airport (MTH)](https://flightduration.online/airport/mth-marathon-the-florida-keys-marathon-international-airport/1ef266df-2c6f-6666-a658-06bb2780ed98)

- City: Marathon, United States
- ICAO: KMTH
- Timezone: America/New_York
- Coordinates: 24.730000, -81.050000
- Elevation: 5 ft

### [Shenzhen Bao'an International Airport (SZX)](https://flightduration.online/airport/szx-shenzhen-shenzhen-baoan-international-airport/1ef266e0-1ea0-675a-a1fd-06bb2780ed98)

- City: Shenzhen, China
- ICAO: ZGSZ
- Timezone: Asia/Shanghai
- Coordinates: 22.640000, 113.810000
- Elevation: 13 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 16:44 in Marathon, it's 04:44 in Shenzhen.
With a 12-hour time difference, expect significant jet lag.

## Related

- [The Florida Keys Marathon International Airport (MTH)](https://flightduration.online/airport/mth-marathon-the-florida-keys-marathon-international-airport/1ef266df-2c6f-6666-a658-06bb2780ed98)
- [Shenzhen Bao'an International Airport (SZX)](https://flightduration.online/airport/szx-shenzhen-shenzhen-baoan-international-airport/1ef266e0-1ea0-675a-a1fd-06bb2780ed98)
- [Flight duration calculator](/#calculator)