How far is Cascais from Portland, ME?

The distance between Portland (Portland International Jetport) and Cascais (Cascais Airport) is 3124 miles / 5028 kilometers / 2715 nautical miles.

Distance from Portland to Cascais

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

Vincenty's formula (applied above)

• 3124.002 miles
• 5027.594 kilometers
• 2714.684 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

• 3116.140 miles
• 5014.941 kilometers
• 2707.852 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 Portland to Cascais?

The estimated flight time from Portland International Jetport to Cascais Airport is 6 hours and 24 minutes.

What is the time difference between Portland and Cascais?

The time difference between Portland and Cascais is 5 hours. Cascais is 5 hours ahead of Portland.

Flight carbon footprint between Portland International Jetport (PWM) and Cascais Airport (CAT)

On average, flying from Portland to Cascais generates about 349 kg of CO2 per passenger, and 349 kilograms equals 770 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Portland to Cascais

See the map of the shortest flight path between Portland International Jetport (PWM) and Cascais Airport (CAT).

Airport information

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

Destination	Cascais Airport
City:	Cascais
Country:	Portugal
IATA Code:	CAT
ICAO Code:	LPCS
Coordinates:	38°43′29″N, 9°21′18″W