How far is Great Falls from Seattle?
There are several ways to calculate distances between Seattle and Great Falls. Here are two common methods:Vincenty's formula (applied above)
- 511.279 miles
- 822.824 kilometers
- 444.289 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 509.778 miles
- 820.407 kilometers
- 442.985 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).
Estimated flight time from Boeing Field (BFI) to Great Falls International Airport (GTF) is 1 hour 28 minutes.
Time difference and current local times
The time difference between Seattle and Great Falls is 1 hour. Great Falls is 1 hour ahead of Seattle.
Great Falls, MT
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 101 kg (222 pounds).
Seattle to Great Falls flight path
Shortest flight path between Boeing Field (BFI) and Great Falls International Airport (GTF).
Frequent Flyer Miles Calculator
Seattle (BFI) → Great Falls (GTF).