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How far is St Augustine, FL, from Seattle, WA?

The distance between Seattle (Seattle Boeing Field) and St Augustine (Northeast Florida Regional Airport) is 2484 miles / 3997 kilometers / 2158 nautical miles.

The driving distance from Seattle (BFI) to St Augustine (UST) is 3047 miles / 4904 kilometers, and travel time by car is about 53 hours 55 minutes.

Seattle Boeing Field – Northeast Florida Regional Airport

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2484
Miles
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3997
Kilometers
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2158
Nautical miles

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Distance from Seattle to St Augustine

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

Vincenty's formula (applied above)
  • 2483.601 miles
  • 3996.968 kilometers
  • 2158.190 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
  • 2480.014 miles
  • 3991.196 kilometers
  • 2155.074 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 St Augustine?

The estimated flight time from Seattle Boeing Field to Northeast Florida Regional Airport is 5 hours and 12 minutes.

Flight carbon footprint between Seattle Boeing Field (BFI) and Northeast Florida Regional Airport (UST)

On average, flying from Seattle to St Augustine generates about 273 kg of CO2 per passenger, and 273 kilograms equals 602 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 St Augustine

See the map of the shortest flight path between Seattle Boeing Field (BFI) and Northeast Florida Regional Airport (UST).

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 Northeast Florida Regional Airport
City: St Augustine, FL
Country: United States Flag of United States
IATA Code: UST
ICAO Code: KSGJ
Coordinates: 29°57′33″N, 81°20′23″W