Air Miles Calculator

Distance between Seattle, WA (BFI) and St Augustine, FL (UST)

Distance from Seattle to St Augustine (Boeing Field – Northeast Florida Regional Airport) is 2484 miles / 3997 kilometers / 2158 nautical miles.

How far is St Augustine from Seattle?

There are several ways to calculate distances between Seattle and St Augustine. Here are two common 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 earth.

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).

Flight duration

Estimated flight time from Boeing Field (BFI) to Northeast Florida Regional Airport (UST) is 5 hours 12 minutes.

Time difference and current local times

The time difference between Seattle and St Augustine is 3 hours. St Augustine is 3 hours ahead of Seattle.

Time Difference

Seattle
St Augustine

Seattle, WA

 PDT

St Augustine, FL

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 278 kg (612 pounds).

Airport information


A 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

B 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

Seattle to St Augustine flight path

Shortest flight path between Boeing Field (BFI) and Northeast Florida Regional Airport (UST).

Frequent Flyer Miles Calculator

Seattle (BFI) → St Augustine (UST).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
2484
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2484

Round trip?