How far is Haiphong from Simao?

The distance between Simao (Pu'er Simao Airport) and Haiphong (Cat Bi International Airport) is 395 miles / 635 kilometers / 343 nautical miles.

The driving distance from Simao (SYM) to Haiphong (HPH) is 549 miles / 883 kilometers, and travel time by car is about 10 hours 38 minutes.

Distance from Simao to Haiphong

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

Vincenty's formula (applied above)

• 394.534 miles
• 634.940 kilometers
• 342.840 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

• 394.182 miles
• 634.375 kilometers
• 342.535 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 Simao to Haiphong?

The estimated flight time from Pu'er Simao Airport to Cat Bi International Airport is 1 hour and 14 minutes.

What is the time difference between Simao and Haiphong?

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

Flight carbon footprint between Pu'er Simao Airport (SYM) and Cat Bi International Airport (HPH)

On average, flying from Simao to Haiphong generates about 83 kg of CO2 per passenger, and 83 kilograms equals 183 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Simao to Haiphong

See the map of the shortest flight path between Pu'er Simao Airport (SYM) and Cat Bi International Airport (HPH).

Airport information

Origin	Pu'er Simao Airport
City:	Simao
Country:	China
IATA Code:	SYM
ICAO Code:	ZPSM
Coordinates:	22°47′35″N, 100°57′32″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