How far is Muang Xay from Simao?

The distance between Simao (Pu'er Simao Airport) and Muang Xay (Oudomsay Airport) is 160 miles / 257 kilometers / 139 nautical miles.

The driving distance from Simao (SYM) to Muang Xay (ODY) is 231 miles / 371 kilometers, and travel time by car is about 4 hours 21 minutes.

Distance from Simao to Muang Xay

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

Vincenty's formula (applied above)

• 159.728 miles
• 257.057 kilometers
• 138.800 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

• 160.243 miles
• 257.886 kilometers
• 139.247 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 Muang Xay?

The estimated flight time from Pu'er Simao Airport to Oudomsay Airport is 48 minutes.

What is the time difference between Simao and Muang Xay?

The time difference between Simao and Muang Xay is 1 hour. Muang Xay is 1 hour behind Simao.

Flight carbon footprint between Pu'er Simao Airport (SYM) and Oudomsay Airport (ODY)

On average, flying from Simao to Muang Xay generates about 49 kg of CO2 per passenger, and 49 kilograms equals 107 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 Muang Xay

See the map of the shortest flight path between Pu'er Simao Airport (SYM) and Oudomsay Airport (ODY).

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