How far is Portland, ME, from Rome?

The distance between Rome (Ciampino–G. B. Pastine International Airport) and Portland (Portland International Jetport) is 4033 miles / 6491 kilometers / 3505 nautical miles.

Distance from Rome to Portland

There are several ways to calculate the distance from Rome to Portland. Here are two standard methods:

Vincenty's formula (applied above)

• 4033.183 miles
• 6490.779 kilometers
• 3504.740 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

• 4022.549 miles
• 6473.665 kilometers
• 3495.499 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 Rome to Portland?

The estimated flight time from Ciampino–G. B. Pastine International Airport to Portland International Jetport is 8 hours and 8 minutes.

What is the time difference between Rome and Portland?

The time difference between Rome and Portland is 6 hours. Portland is 6 hours behind Rome.

Flight carbon footprint between Ciampino–G. B. Pastine International Airport (CIA) and Portland International Jetport (PWM)

On average, flying from Rome to Portland generates about 460 kg of CO2 per passenger, and 460 kilograms equals 1 015 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rome to Portland

See the map of the shortest flight path between Ciampino–G. B. Pastine International Airport (CIA) and Portland International Jetport (PWM).

Airport information

Origin	Ciampino–G. B. Pastine International Airport
City:	Rome
Country:	Italy
IATA Code:	CIA
ICAO Code:	LIRA
Coordinates:	41°47′57″N, 12°35′41″E

Destination	Portland International Jetport
City:	Portland, ME
Country:	United States
IATA Code:	PWM
ICAO Code:	KPWM
Coordinates:	43°38′46″N, 70°18′33″W