# Distance between Dandong (DDG) and Haiphong (HPH)

Flight distance from Dandong to Haiphong (Dandong Langtou Airport – Cat Bi International Airport) is 1681 miles / 2705 kilometers / 1461 nautical miles. Estimated flight time is 3 hours 40 minutes.

Driving distance from Dandong (DDG) to Haiphong (HPH) is 2168 miles / 3489 kilometers and travel time by car is about 37 hours 32 minutes.

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

Shortest flight path between Dandong Langtou Airport (DDG) and Cat Bi International Airport (HPH).

## How far is Haiphong from Dandong?

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

Vincenty's formula (applied above)
• 1681.111 miles
• 2705.486 kilometers
• 1460.846 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
• 1682.956 miles
• 2708.454 kilometers
• 1462.448 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 Cat Bi International Airport
City: Haiphong
Country: Vietnam
IATA Code: HPH
ICAO Code: VVCI
Coordinates: 20°49′9″N, 106°43′29″E

## Time difference and current local times

The time difference between Dandong and Haiphong is 1 hour. Haiphong is 1 hour behind Dandong.

CST

+07

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 191 kg (422 pounds).

## Frequent Flyer Miles Calculator

Dandong (DDG) → Haiphong (HPH).

Distance:
1681
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1681

Round trip?