How far is Sydney from Seattle, WA?
The distance between Seattle (Seattle–Tacoma International Airport) and Sydney (Sydney/J.A. Douglas McCurdy Airport) is 2873 miles / 4624 kilometers / 2497 nautical miles.
The driving distance from Seattle (SEA) to Sydney (YQY) is 3637 miles / 5853 kilometers, and travel time by car is about 69 hours 25 minutes.
Seattle–Tacoma International Airport – Sydney/J.A. Douglas McCurdy Airport
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Distance from Seattle to Sydney
There are several ways to calculate the distance from Seattle to Sydney. Here are two standard methods:
Vincenty's formula (applied above)- 2873.219 miles
- 4623.998 kilometers
- 2496.759 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- 2864.920 miles
- 4610.642 kilometers
- 2489.548 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 Sydney?
The estimated flight time from Seattle–Tacoma International Airport to Sydney/J.A. Douglas McCurdy Airport is 5 hours and 56 minutes.
What is the time difference between Seattle and Sydney?
The time difference between Seattle and Sydney is 4 hours. Sydney is 4 hours ahead of Seattle.
Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Sydney/J.A. Douglas McCurdy Airport (YQY)
On average, flying from Seattle to Sydney generates about 319 kg of CO2 per passenger, and 319 kilograms equals 704 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Seattle to Sydney
See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Sydney/J.A. Douglas McCurdy Airport (YQY).
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 | Sydney/J.A. Douglas McCurdy Airport |
|---|---|
| City: | Sydney |
| Country: | Canada  |
| IATA Code: | YQY |
| ICAO Code: | CYQY |
| Coordinates: | 46°9′41″N, 60°2′52″W |