How far is Seattle, WA, from Belfast?

The distance between Belfast (George Best Belfast City Airport) and Seattle (Seattle–Tacoma International Airport) is 4489 miles / 7224 kilometers / 3901 nautical miles.

Distance from Belfast to Seattle

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

Vincenty's formula (applied above)

• 4488.765 miles
• 7223.967 kilometers
• 3900.630 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

• 4475.002 miles
• 7201.818 kilometers
• 3888.671 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 Belfast to Seattle?

The estimated flight time from George Best Belfast City Airport to Seattle–Tacoma International Airport is 8 hours and 59 minutes.

What is the time difference between Belfast and Seattle?

The time difference between Belfast and Seattle is 8 hours. Seattle is 8 hours behind Belfast.

Flight carbon footprint between George Best Belfast City Airport (BHD) and Seattle–Tacoma International Airport (SEA)

On average, flying from Belfast to Seattle generates about 518 kg of CO2 per passenger, and 518 kilograms equals 1 142 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Belfast to Seattle

See the map of the shortest flight path between George Best Belfast City Airport (BHD) and Seattle–Tacoma International Airport (SEA).

Airport information

Origin	George Best Belfast City Airport
City:	Belfast
Country:	United Kingdom
IATA Code:	BHD
ICAO Code:	EGAC
Coordinates:	54°37′5″N, 5°52′20″W

Destination	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