How far is Unalaska, AK, from Houston, TX?

The distance between Houston (Houston George Bush Intercontinental Airport) and Unalaska (Unalaska Airport) is 3833 miles / 6169 kilometers / 3331 nautical miles.

Distance from Houston to Unalaska

There are several ways to calculate the distance from Houston to Unalaska. Here are two standard methods:

Vincenty's formula (applied above)

• 3833.047 miles
• 6168.691 kilometers
• 3330.827 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

• 3825.834 miles
• 6157.083 kilometers
• 3324.559 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 Houston to Unalaska?

The estimated flight time from Houston George Bush Intercontinental Airport to Unalaska Airport is 7 hours and 45 minutes.

What is the time difference between Houston and Unalaska?

The time difference between Houston and Unalaska is 4 hours. Unalaska is 4 hours behind Houston.

Flight carbon footprint between Houston George Bush Intercontinental Airport (IAH) and Unalaska Airport (DUT)

On average, flying from Houston to Unalaska generates about 436 kg of CO2 per passenger, and 436 kilograms equals 960 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Houston to Unalaska

See the map of the shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Unalaska Airport (DUT).

Airport information

Origin	Houston George Bush Intercontinental Airport
City:	Houston, TX
Country:	United States
IATA Code:	IAH
ICAO Code:	KIAH
Coordinates:	29°59′3″N, 95°20′29″W

Destination	Unalaska Airport
City:	Unalaska, AK
Country:	United States
IATA Code:	DUT
ICAO Code:	PADU
Coordinates:	53°54′0″N, 166°32′38″W