How far is Billings, MT, from Porto?

The distance between Porto (Porto Airport) and Billings (Billings Logan International Airport) is 4675 miles / 7524 kilometers / 4062 nautical miles.

Distance from Porto to Billings

There are several ways to calculate the distance from Porto to Billings. Here are two standard methods:

Vincenty's formula (applied above)

• 4674.962 miles
• 7523.621 kilometers
• 4062.431 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

• 4662.561 miles
• 7503.664 kilometers
• 4051.655 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 Porto to Billings?

The estimated flight time from Porto Airport to Billings Logan International Airport is 9 hours and 21 minutes.

What is the time difference between Porto and Billings?

The time difference between Porto and Billings is 6 hours. Billings is 6 hours behind Porto.

Flight carbon footprint between Porto Airport (OPO) and Billings Logan International Airport (BIL)

On average, flying from Porto to Billings generates about 542 kg of CO2 per passenger, and 542 kilograms equals 1 194 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Porto to Billings

See the map of the shortest flight path between Porto Airport (OPO) and Billings Logan International Airport (BIL).

Airport information

Origin	Porto Airport
City:	Porto
Country:	Portugal
IATA Code:	OPO
ICAO Code:	LPPR
Coordinates:	41°14′53″N, 8°40′53″W

Destination	Billings Logan International Airport
City:	Billings, MT
Country:	United States
IATA Code:	BIL
ICAO Code:	KBIL
Coordinates:	45°48′27″N, 108°32′34″W