How far is Muang Xay from Haiphong?

The distance between Haiphong (Cat Bi International Airport) and Muang Xay (Oudomsay Airport) is 306 miles / 493 kilometers / 266 nautical miles.

The driving distance from Haiphong (HPH) to Muang Xay (ODY) is 473 miles / 761 kilometers, and travel time by car is about 9 hours 52 minutes.

Distance from Haiphong to Muang Xay

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

Vincenty's formula (applied above)

• 306.280 miles
• 492.909 kilometers
• 266.150 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

• 305.810 miles
• 492.154 kilometers
• 265.742 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 Muang Xay?

The estimated flight time from Cat Bi International Airport to Oudomsay Airport is 1 hour and 4 minutes.

What is the time difference between Haiphong and Muang Xay?

There is no time difference between Haiphong and Muang Xay.

Flight carbon footprint between Cat Bi International Airport (HPH) and Oudomsay Airport (ODY)

On average, flying from Haiphong to Muang Xay generates about 70 kg of CO2 per passenger, and 70 kilograms equals 155 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 Muang Xay

See the map of the shortest flight path between Cat Bi International Airport (HPH) and Oudomsay Airport (ODY).

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	Oudomsay Airport
City:	Muang Xay
Country:	Laos
IATA Code:	ODY
ICAO Code:	VLOS
Coordinates:	20°40′57″N, 101°59′38″E