Air Miles Calculator

Distance between Seattle, WA (BFI) and Gustavus, AK (GST)

Flight distance from Seattle to Gustavus (Seattle Boeing Field – Gustavus Airport) is 935 miles / 1504 kilometers / 812 nautical miles. Estimated flight time is 2 hours 16 minutes.

Driving distance from Seattle (BFI) to Gustavus (GST) is 1475 miles / 2374 kilometers and travel time by car is about 37 hours 57 minutes.

Map of flight path and driving directions from Seattle to Gustavus.

Shortest flight path between Seattle Boeing Field (BFI) and Gustavus Airport (GST).

How far is Gustavus from Seattle?

There are several ways to calculate distances between Seattle and Gustavus. Here are two common methods:

Vincenty's formula (applied above)
  • 934.781 miles
  • 1504.385 kilometers
  • 812.303 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
  • 933.232 miles
  • 1501.891 kilometers
  • 810.956 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).

Airport information


A Seattle 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 Gustavus Airport
City: Gustavus, AK
Country: United States Flag of United States
IATA Code: GST
ICAO Code: PAGS
Coordinates: 58°25′31″N, 135°42′25″W

Time difference and current local times

The time difference between Seattle and Gustavus is 1 hour. Gustavus is 1 hour behind Seattle.

Time Difference

Seattle, WA

 PDT

Gustavus, AK

 AKDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 146 kg (322 pounds).

Frequent Flyer Miles Calculator

Seattle (BFI) → Gustavus (GST).

Distance:
935
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
935

Round trip?