How far is Fort Smith, AR, from Portland, ME?
The distance between Portland (Portland International Jetport) and Fort Smith (Fort Smith Regional Airport) is 1401 miles / 2255 kilometers / 1218 nautical miles.
The driving distance from Portland (PWM) to Fort Smith (FSM) is 1694 miles / 2727 kilometers, and travel time by car is about 31 hours 43 minutes.
Portland International Jetport – Fort Smith Regional Airport
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Distance from Portland to Fort Smith
There are several ways to calculate the distance from Portland to Fort Smith. Here are two standard methods:
Vincenty's formula (applied above)- 1401.292 miles
- 2255.161 kilometers
- 1217.689 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- 1398.774 miles
- 2251.108 kilometers
- 1215.501 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 Fort Smith?
The estimated flight time from Portland International Jetport to Fort Smith Regional Airport is 3 hours and 9 minutes.
What is the time difference between Portland and Fort Smith?
The time difference between Portland and Fort Smith is 1 hour. Fort Smith is 1 hour behind Portland.
Flight carbon footprint between Portland International Jetport (PWM) and Fort Smith Regional Airport (FSM)
On average, flying from Portland to Fort Smith generates about 173 kg of CO2 per passenger, and 173 kilograms equals 382 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 Fort Smith
See the map of the shortest flight path between Portland International Jetport (PWM) and Fort Smith Regional Airport (FSM).
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 | Fort Smith Regional Airport |
|---|---|
| City: | Fort Smith, AR |
| Country: | United States |
| IATA Code: | FSM |
| ICAO Code: | KFSM |
| Coordinates: | 35°20′11″N, 94°22′2″W |