Air Miles Calculator logo

How far is Newcastle from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Newcastle (Newcastle Airport) is 7657 miles / 12323 kilometers / 6654 nautical miles.

Seattle–Tacoma International Airport – Newcastle Airport

Distance arrow
7657
Miles
Distance arrow
12323
Kilometers
Distance arrow
6654
Nautical miles

Search flights

Distance from Seattle to Newcastle

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

Vincenty's formula (applied above)
  • 7657.402 miles
  • 12323.394 kilometers
  • 6654.100 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
  • 7667.556 miles
  • 12339.735 kilometers
  • 6662.924 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 Newcastle?

The estimated flight time from Seattle–Tacoma International Airport to Newcastle Airport is 14 hours and 59 minutes.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Newcastle Airport (NTL)

On average, flying from Seattle to Newcastle generates about 949 kg of CO2 per passenger, and 949 kilograms equals 2 091 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Newcastle

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

Airport information

Origin 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
Destination Newcastle Airport
City: Newcastle
Country: Australia Flag of Australia
IATA Code: NTL
ICAO Code: YWLM
Coordinates: 32°47′41″S, 151°50′2″E