How far is Portland, OR, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Portland (Portland International Airport) is 550 miles / 886 kilometers / 478 nautical miles.
The driving distance from Great Falls (GTF) to Portland (PDX) is 715 miles / 1151 kilometers, and travel time by car is about 13 hours 34 minutes.
Great Falls International Airport – Portland International Airport
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Distance from Great Falls to Portland
There are several ways to calculate the distance from Great Falls to Portland. Here are two standard methods:
Vincenty's formula (applied above)- 550.364 miles
- 885.725 kilometers
- 478.253 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- 548.878 miles
- 883.334 kilometers
- 476.962 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 Great Falls to Portland?
The estimated flight time from Great Falls International Airport to Portland International Airport is 1 hour and 32 minutes.
What is the time difference between Great Falls and Portland?
Flight carbon footprint between Great Falls International Airport (GTF) and Portland International Airport (PDX)
On average, flying from Great Falls to Portland generates about 106 kg of CO2 per passenger, and 106 kilograms equals 234 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Great Falls to Portland
See the map of the shortest flight path between Great Falls International Airport (GTF) and Portland International Airport (PDX).
Airport information
| Origin | Great Falls International Airport |
|---|---|
| City: | Great Falls, MT |
| Country: | United States  |
| IATA Code: | GTF |
| ICAO Code: | KGTF |
| Coordinates: | 47°28′55″N, 111°22′15″W |
| Destination | Portland International Airport |
|---|---|
| City: | Portland, OR |
| Country: | United States |
| IATA Code: | PDX |
| ICAO Code: | KPDX |
| Coordinates: | 45°35′19″N, 122°35′52″W |