How far is Great Falls, MT, from Portland, OR?
The distance between Portland (Portland International Airport) and Great Falls (Great Falls International Airport) is 550 miles / 886 kilometers / 478 nautical miles.
The driving distance from Portland (PDX) to Great Falls (GTF) is 715 miles / 1150 kilometers, and travel time by car is about 13 hours 31 minutes.
Portland International Airport – Great Falls International Airport
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Distance from Portland to Great Falls
There are several ways to calculate the distance from Portland to Great Falls. 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 Portland to Great Falls?
The estimated flight time from Portland International Airport to Great Falls International Airport is 1 hour and 32 minutes.
What is the time difference between Portland and Great Falls?
Flight carbon footprint between Portland International Airport (PDX) and Great Falls International Airport (GTF)
On average, flying from Portland to Great Falls 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 Portland to Great Falls
See the map of the shortest flight path between Portland International Airport (PDX) and Great Falls International Airport (GTF).
Airport information
| Origin | Portland International Airport |
|---|---|
| City: | Portland, OR |
| Country: | United States  |
| IATA Code: | PDX |
| ICAO Code: | KPDX |
| Coordinates: | 45°35′19″N, 122°35′52″W |
| Destination | 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 |