How far is Sanya from Haiphong?

The distance between Haiphong (Cat Bi International Airport) and Sanya (Sanya Phoenix International Airport) is 246 miles / 396 kilometers / 214 nautical miles.

The driving distance from Haiphong (HPH) to Sanya (SYX) is 582 miles / 937 kilometers, and travel time by car is about 15 hours 8 minutes.

Distance from Haiphong to Sanya

There are several ways to calculate the distance from Haiphong to Sanya. Here are two standard methods:

Vincenty's formula (applied above)

• 246.274 miles
• 396.339 kilometers
• 214.006 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

• 246.634 miles
• 396.919 kilometers
• 214.319 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 Haiphong to Sanya?

The estimated flight time from Cat Bi International Airport to Sanya Phoenix International Airport is 57 minutes.

What is the time difference between Haiphong and Sanya?

The time difference between Haiphong and Sanya is 1 hour. Sanya is 1 hour ahead of Haiphong.

Flight carbon footprint between Cat Bi International Airport (HPH) and Sanya Phoenix International Airport (SYX)

On average, flying from Haiphong to Sanya generates about 61 kg of CO2 per passenger, and 61 kilograms equals 135 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Haiphong to Sanya

See the map of the shortest flight path between Cat Bi International Airport (HPH) and Sanya Phoenix International Airport (SYX).

Airport information

Origin	Cat Bi International Airport
City:	Haiphong
Country:	Vietnam
IATA Code:	HPH
ICAO Code:	VVCI
Coordinates:	20°49′9″N, 106°43′29″E

Destination	Sanya Phoenix International Airport
City:	Sanya
Country:	China
IATA Code:	SYX
ICAO Code:	ZJSY
Coordinates:	18°18′10″N, 109°24′43″E