How far is Perth from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Perth (Perth Airport) is 9237 miles / 14866 kilometers / 8027 nautical miles.

Distance from Seattle to Perth

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

Vincenty's formula (applied above)

• 9237.202 miles
• 14865.835 kilometers
• 8026.909 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

• 9241.066 miles
• 14872.054 kilometers
• 8030.267 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 Seattle to Perth?

The estimated flight time from Seattle–Tacoma International Airport to Perth Airport is 17 hours and 59 minutes.

What is the time difference between Seattle and Perth?

The time difference between Seattle and Perth is 16 hours. Perth is 16 hours ahead of Seattle.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Perth Airport (PER)

On average, flying from Seattle to Perth generates about 1 183 kg of CO2 per passenger, and 1 183 kilograms equals 2 609 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Perth

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Perth Airport (PER).

Airport information

Origin	Seattle–Tacoma International Airport
City:	Seattle, WA
Country:	United States
IATA Code:	SEA
ICAO Code:	KSEA
Coordinates:	47°26′56″N, 122°18′32″W

Destination	Perth Airport
City:	Perth
Country:	Australia
IATA Code:	PER
ICAO Code:	YPPH
Coordinates:	31°56′25″S, 115°58′1″E