How far is Unalaska, AK, from Ontario, CA?

The distance between Ontario (Ontario International Airport) and Unalaska (Unalaska Airport) is 2725 miles / 4385 kilometers / 2368 nautical miles.

Distance from Ontario to Unalaska

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

Vincenty's formula (applied above)

• 2725.007 miles
• 4385.473 kilometers
• 2367.966 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

• 2720.033 miles
• 4377.469 kilometers
• 2363.644 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 Ontario to Unalaska?

The estimated flight time from Ontario International Airport to Unalaska Airport is 5 hours and 39 minutes.

What is the time difference between Ontario and Unalaska?

The time difference between Ontario and Unalaska is 2 hours. Unalaska is 2 hours behind Ontario.

Flight carbon footprint between Ontario International Airport (ONT) and Unalaska Airport (DUT)

On average, flying from Ontario to Unalaska generates about 302 kg of CO2 per passenger, and 302 kilograms equals 665 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Ontario to Unalaska

See the map of the shortest flight path between Ontario International Airport (ONT) and Unalaska Airport (DUT).

Airport information

Origin	Ontario International Airport
City:	Ontario, CA
Country:	United States
IATA Code:	ONT
ICAO Code:	KONT
Coordinates:	34°3′21″N, 117°36′3″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