How far is Portland, ME, from Grand Island, NE?
The distance between Grand Island (Central Nebraska Regional Airport) and Portland (Portland International Jetport) is 1439 miles / 2317 kilometers / 1251 nautical miles.
The driving distance from Grand Island (GRI) to Portland (PWM) is 1690 miles / 2720 kilometers, and travel time by car is about 31 hours 28 minutes.
Central Nebraska Regional Airport – Portland International Jetport
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Distance from Grand Island to Portland
There are several ways to calculate the distance from Grand Island to Portland. Here are two standard methods:
Vincenty's formula (applied above)- 1439.460 miles
- 2316.587 kilometers
- 1250.857 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- 1435.758 miles
- 2310.629 kilometers
- 1247.640 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 Grand Island to Portland?
The estimated flight time from Central Nebraska Regional Airport to Portland International Jetport is 3 hours and 13 minutes.
What is the time difference between Grand Island and Portland?
Flight carbon footprint between Central Nebraska Regional Airport (GRI) and Portland International Jetport (PWM)
On average, flying from Grand Island to Portland generates about 176 kg of CO2 per passenger, and 176 kilograms equals 387 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Grand Island to Portland
See the map of the shortest flight path between Central Nebraska Regional Airport (GRI) and Portland International Jetport (PWM).
Airport information
| Origin | Central Nebraska Regional Airport |
|---|---|
| City: | Grand Island, NE |
| Country: | United States  |
| IATA Code: | GRI |
| ICAO Code: | KGRI |
| Coordinates: | 40°58′2″N, 98°18′34″W |
| 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 |