# Distance between Dandong (DDG) and Tonghua (TNH)

Flight distance from Dandong to Tonghua (Dandong Langtou Airport – Tonghua Sanyuanpu Airport) is 171 miles / 275 kilometers / 148 nautical miles. Estimated flight time is 49 minutes.

Driving distance from Dandong (DDG) to Tonghua (TNH) is 209 miles / 337 kilometers and travel time by car is about 3 hours 39 minutes.

## Map of flight path and driving directions from Dandong to Tonghua.

Shortest flight path between Dandong Langtou Airport (DDG) and Tonghua Sanyuanpu Airport (TNH).

## How far is Tonghua from Dandong?

There are several ways to calculate distances between Dandong and Tonghua. Here are two common methods:

Vincenty's formula (applied above)
• 170.671 miles
• 274.669 kilometers
• 148.309 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 170.762 miles
• 274.815 kilometers
• 148.388 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

## Airport information

A Dandong Langtou Airport
City: Dandong
Country: China
IATA Code: DDG
ICAO Code: ZYDD
Coordinates: 40°1′28″N, 124°17′9″E

B Tonghua Sanyuanpu Airport
City: Tonghua
Country: China
IATA Code: TNH
ICAO Code: ZYTN
Coordinates: 42°15′14″N, 125°42′11″E

## Time difference and current local times

There is no time difference between Dandong and Tonghua.

CST

CST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 50 kg (111 pounds).

## Frequent Flyer Miles Calculator

Dandong (DDG) → Tonghua (TNH).

Distance:
171
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
171

Round trip?