Air Miles Calculator

Distance between Seattle, WA (BFI) and Westerly, RI (WST)

Distance from Seattle to Westerly (Boeing Field – Westerly State Airport) is 2489 miles / 4006 kilometers / 2163 nautical miles.

How far is Westerly from Seattle?

There are several ways to calculate distances between Seattle and Westerly. Here are two common methods:

Vincenty's formula (applied above)
  • 2489.116 miles
  • 4005.844 kilometers
  • 2162.983 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
  • 2482.516 miles
  • 3995.222 kilometers
  • 2157.247 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 Westerly State Airport (WST) is 5 hours 12 minutes.

Time difference and current local times

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

Time Difference

Seattle
Westerly

Seattle, WA

 PDT

Westerly, RI

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 278 kg (613 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 Westerly State Airport
City: Westerly, RI
Country: United States Flag of United States
IATA Code: WST
ICAO Code: KWST
Coordinates: 41°20′58″N, 71°48′12″W

Seattle to Westerly flight path

Shortest flight path between Boeing Field (BFI) and Westerly State Airport (WST).

Frequent Flyer Miles Calculator

Seattle (BFI) → Westerly (WST).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
2489
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2489

Round trip?