How far is Great Falls, MT, from Seattle, WA?
The distance between Seattle (Seattle–Tacoma International Airport) and Great Falls (Great Falls International Airport) is 512 miles / 824 kilometers / 445 nautical miles.
The driving distance from Seattle (SEA) to Great Falls (GTF) is 651 miles / 1048 kilometers, and travel time by car is about 12 hours 14 minutes.
Seattle–Tacoma International Airport – Great Falls International Airport
Search flights
Distance from Seattle to Great Falls
There are several ways to calculate the distance from Seattle to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 511.994 miles
- 823.975 kilometers
- 444.911 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- 510.492 miles
- 821.557 kilometers
- 443.605 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 Seattle to Great Falls?
The estimated flight time from Seattle–Tacoma International Airport to Great Falls International Airport is 1 hour and 28 minutes.
What is the time difference between Seattle and Great Falls?
Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Great Falls International Airport (GTF)
On average, flying from Seattle to Great Falls generates about 100 kg of CO2 per passenger, and 100 kilograms equals 221 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Seattle to Great Falls
See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Great Falls International Airport (GTF).
Airport information
| Origin | Seattle–Tacoma International Airport |
|---|---|
| City: | Seattle, WA |
| Country: | United States  |
| IATA Code: | SEA |
| ICAO Code: | KSEA |
| Coordinates: | 47°26′56″N, 122°18′32″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 |
Airlines flying from Seattle (SEA) to Great Falls (GTF)
| Alaska Airlines |