How far is Haiphong from Chiang Rai?
The distance between Chiang Rai (Chiang Rai International Airport) and Haiphong (Cat Bi International Airport) is 448 miles / 721 kilometers / 389 nautical miles.
The driving distance from Chiang Rai (CEI) to Haiphong (HPH) is 718 miles / 1156 kilometers, and travel time by car is about 15 hours 16 minutes.
Chiang Rai International Airport – Cat Bi International Airport
Search flights
Distance from Chiang Rai to Haiphong
There are several ways to calculate the distance from Chiang Rai to Haiphong. Here are two standard methods:
Vincenty's formula (applied above)- 447.764 miles
- 720.607 kilometers
- 389.097 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 447.129 miles
- 719.585 kilometers
- 388.545 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).
How long does it take to fly from Chiang Rai to Haiphong?
The estimated flight time from Chiang Rai International Airport to Cat Bi International Airport is 1 hour and 20 minutes.
What is the time difference between Chiang Rai and Haiphong?
There is no time difference between Chiang Rai and Haiphong.
Flight carbon footprint between Chiang Rai International Airport (CEI) and Cat Bi International Airport (HPH)
On average, flying from Chiang Rai to Haiphong generates about 91 kg of CO2 per passenger, and 91 kilograms equals 200 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Chiang Rai to Haiphong
See the map of the shortest flight path between Chiang Rai International Airport (CEI) and Cat Bi International Airport (HPH).
Airport information
| Origin | Chiang Rai International Airport |
|---|---|
| City: | Chiang Rai |
| Country: | Thailand  |
| IATA Code: | CEI |
| ICAO Code: | VTCT |
| Coordinates: | 19°57′8″N, 99°52′58″E |
| Destination | Cat Bi International Airport |
|---|---|
| City: | Haiphong |
| Country: | Vietnam  |
| IATA Code: | HPH |
| ICAO Code: | VVCI |
| Coordinates: | 20°49′9″N, 106°43′29″E |