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How far is Seattle, WA, from Johnstown, PA?

The distance between Johnstown (Johnstown–Cambria County Airport) and Seattle (Seattle–Tacoma International Airport) is 2196 miles / 3534 kilometers / 1908 nautical miles.

The driving distance from Johnstown (JST) to Seattle (SEA) is 2602 miles / 4187 kilometers, and travel time by car is about 46 hours 33 minutes.

Johnstown–Cambria County Airport – Seattle–Tacoma International Airport

Distance arrow
2196
Miles
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3534
Kilometers
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1908
Nautical miles

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Distance from Johnstown to Seattle

There are several ways to calculate the distance from Johnstown to Seattle. Here are two standard methods:

Vincenty's formula (applied above)
  • 2195.856 miles
  • 3533.887 kilometers
  • 1908.146 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
  • 2190.268 miles
  • 3524.895 kilometers
  • 1903.291 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 Johnstown to Seattle?

The estimated flight time from Johnstown–Cambria County Airport to Seattle–Tacoma International Airport is 4 hours and 39 minutes.

Flight carbon footprint between Johnstown–Cambria County Airport (JST) and Seattle–Tacoma International Airport (SEA)

On average, flying from Johnstown to Seattle generates about 240 kg of CO2 per passenger, and 240 kilograms equals 529 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Johnstown to Seattle

See the map of the shortest flight path between Johnstown–Cambria County Airport (JST) and Seattle–Tacoma International Airport (SEA).

Airport information

Origin Johnstown–Cambria County Airport
City: Johnstown, PA
Country: United States Flag of United States
IATA Code: JST
ICAO Code: KJST
Coordinates: 40°18′57″N, 78°50′2″W
Destination Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W