Air Miles Calculator

Distance between Seattle, WA (BFI) and Great Falls, MT (GTF)

Distance from Seattle to Great Falls (Boeing Field – Great Falls International Airport) is 511 miles / 823 kilometers / 444 nautical miles.

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).

Flight duration

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.

Time Difference

Seattle
Great Falls

Seattle, WA

 PDT

Great Falls, MT

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 101 kg (222 pounds).

Airport information


A Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W

B Great Falls International Airport
City: Great Falls, MT
Country: United States Flag of United States
IATA Code: GTF
ICAO Code: KGTF
Coordinates: 47°28′55″N, 111°22′15″W

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).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
511
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
511

Round trip?