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

Flight distance from Seattle to Westerly (Seattle Boeing Field – Westerly State Airport) is 2489 miles / 4006 kilometers / 2163 nautical miles. Estimated flight time is 5 hours 12 minutes.

Driving distance from Seattle (BFI) to Westerly (WST) is 3026 miles / 4870 kilometers and travel time by car is about 50 hours 34 minutes.

## Map of flight path and driving directions from Seattle to Westerly.

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

## 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).

## Airport information

A Seattle Boeing Field
City: Seattle, WA
Country: 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
IATA Code: WST
ICAO Code: KWST
Coordinates: 41°20′58″N, 71°48′12″W

## Time difference and current local times

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

PDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 274 kg (604 pounds).

## Frequent Flyer Miles Calculator

Seattle (BFI) → Westerly (WST).

Distance:
2489
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
2489

Round trip?