Air Miles Calculator logo

How far is Petersburg, AK, from Spokane, WA?

The distance between Spokane (Spokane International Airport) and Petersburg (Petersburg James A. Johnson Airport) is 908 miles / 1461 kilometers / 789 nautical miles.

The driving distance from Spokane (GEG) to Petersburg (PSG) is 1391 miles / 2239 kilometers, and travel time by car is about 39 hours 17 minutes.

Spokane International Airport – Petersburg James A. Johnson Airport

Distance arrow
908
Miles
Distance arrow
1461
Kilometers
Distance arrow
789
Nautical miles

Search flights

Distance from Spokane to Petersburg

There are several ways to calculate the distance from Spokane to Petersburg. Here are two standard methods:

Vincenty's formula (applied above)
  • 907.938 miles
  • 1461.185 kilometers
  • 788.977 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
  • 906.153 miles
  • 1458.312 kilometers
  • 787.426 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 Spokane to Petersburg?

The estimated flight time from Spokane International Airport to Petersburg James A. Johnson Airport is 2 hours and 13 minutes.

Flight carbon footprint between Spokane International Airport (GEG) and Petersburg James A. Johnson Airport (PSG)

On average, flying from Spokane to Petersburg generates about 144 kg of CO2 per passenger, and 144 kilograms equals 318 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Spokane to Petersburg

See the map of the shortest flight path between Spokane International Airport (GEG) and Petersburg James A. Johnson Airport (PSG).

Airport information

Origin Spokane International Airport
City: Spokane, WA
Country: United States Flag of United States
IATA Code: GEG
ICAO Code: KGEG
Coordinates: 47°37′11″N, 117°32′2″W
Destination Petersburg James A. Johnson Airport
City: Petersburg, AK
Country: United States Flag of United States
IATA Code: PSG
ICAO Code: PAPG
Coordinates: 56°48′6″N, 132°56′42″W