Air Miles Calculator logo

How far is Derry from Seattle, WA?

The distance between Seattle (Seattle Boeing Field) and Derry (City of Derry Airport) is 4428 miles / 7126 kilometers / 3847 nautical miles.

Seattle Boeing Field – City of Derry Airport

Distance arrow
4428
Miles
Distance arrow
7126
Kilometers
Distance arrow
3847
Nautical miles

Search flights

Distance from Seattle to Derry

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

Vincenty's formula (applied above)
  • 4427.598 miles
  • 7125.528 kilometers
  • 3847.477 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
  • 4413.970 miles
  • 7103.595 kilometers
  • 3835.635 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 Derry?

The estimated flight time from Seattle Boeing Field to City of Derry Airport is 8 hours and 52 minutes.

Flight carbon footprint between Seattle Boeing Field (BFI) and City of Derry Airport (LDY)

On average, flying from Seattle to Derry generates about 510 kg of CO2 per passenger, and 510 kilograms equals 1 125 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Derry

See the map of the shortest flight path between Seattle Boeing Field (BFI) and City of Derry Airport (LDY).

Airport information

Origin Seattle Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W
Destination City of Derry Airport
City: Derry
Country: United Kingdom Flag of United Kingdom
IATA Code: LDY
ICAO Code: EGAE
Coordinates: 55°2′34″N, 7°9′39″W