How far is Williston, ND, from Portland, ME?
The distance between Portland (Portland International Jetport) and Williston (Williston Basin International Airport) is 1629 miles / 2621 kilometers / 1415 nautical miles.
The driving distance from Portland (PWM) to Williston (XWA) is 2054 miles / 3305 kilometers, and travel time by car is about 39 hours 22 minutes.
Portland International Jetport – Williston Basin International Airport
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Distance from Portland to Williston
There are several ways to calculate the distance from Portland to Williston. Here are two standard methods:
Vincenty's formula (applied above)- 1628.575 miles
- 2620.938 kilometers
- 1415.193 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- 1624.146 miles
- 2613.810 kilometers
- 1411.344 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 Williston?
The estimated flight time from Portland International Jetport to Williston Basin International Airport is 3 hours and 35 minutes.
What is the time difference between Portland and Williston?
The time difference between Portland and Williston is 2 hours. Williston is 2 hours behind Portland.
Flight carbon footprint between Portland International Jetport (PWM) and Williston Basin International Airport (XWA)
On average, flying from Portland to Williston generates about 188 kg of CO2 per passenger, and 188 kilograms equals 414 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Portland to Williston
See the map of the shortest flight path between Portland International Jetport (PWM) and Williston Basin International Airport (XWA).
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 | Williston Basin International Airport |
|---|---|
| City: | Williston, ND |
| Country: | United States |
| IATA Code: | XWA |
| ICAO Code: | KXWA |
| Coordinates: | 48°15′30″N, 103°44′55″W |