# Distance from Chengdu (CTU) to Semnan (SNX)

> 4,682 km · estimated flight time 7h · Long-haul route.

## Summary

- **Distance**: 4,682 km / 2,909 mi / 2,528 nm
- **Estimated flight time**: 7h
- **Heading**: 291° (west northwest)
- **Return heading**: 82° (east)
- **Classification**: Long-haul
- **Type**: International (China) → Iran
- **Time difference**: -4.5h (When it's 22:40 in Chengdu, it's 18:10 in Semnan)
- **Elevation difference**: 2,040 ft (SNX is higher than CTU)

## Airports

### [Chengdu Shuangliu International Airport (CTU)](https://www.flightduration.online/airport/ctu-chengdu-chengdu-shuangliu-international-airport/1ef266e0-20d1-6f24-8403-06bb2780ed98)

- City: Chengdu, China
- ICAO: ZUUU
- Timezone: Asia/Shanghai
- Coordinates: 30.580000, 103.950000
- Elevation: 1,625 ft

### [Semnan Airport (SNX)](https://www.flightduration.online/airport/snx-semnan-semnan-airport/1ef266df-7db1-6b28-8f31-06bb2780ed98)

- City: Semnan, Iran
- ICAO: OIIS
- Timezone: Asia/Tehran
- Coordinates: 35.590000, 53.500000
- Elevation: 3,665 ft

## Route notes

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 22:40 in Chengdu, it's 18:10 in Semnan.
The 4.5-hour time difference may cause some jet lag.

## Related

- [Chengdu Shuangliu International Airport (CTU)](https://www.flightduration.online/airport/ctu-chengdu-chengdu-shuangliu-international-airport/1ef266e0-20d1-6f24-8403-06bb2780ed98)
- [Semnan Airport (SNX)](https://www.flightduration.online/airport/snx-semnan-semnan-airport/1ef266df-7db1-6b28-8f31-06bb2780ed98)
- [Flight duration calculator](/#calculator)