Air Miles Calculator

Distance between Seattle, WA (BFI) and Watertown, SD (ATY)

Distance from Seattle to Watertown (Boeing Field – Watertown Regional Airport) is 1214 miles / 1953 kilometers / 1055 nautical miles.

How far is Watertown from Seattle?

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

Vincenty's formula (applied above)
  • 1213.569 miles
  • 1953.050 kilometers
  • 1054.563 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
  • 1210.183 miles
  • 1947.601 kilometers
  • 1051.620 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 Watertown Regional Airport (ATY) is 2 hours 47 minutes.

Time difference and current local times

The time difference between Seattle and Watertown is 2 hours. Watertown is 2 hours ahead of Seattle.

Time Difference

Seattle
Watertown

Seattle, WA

 PDT

Watertown, SD

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 162 kg (357 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 Watertown Regional Airport
City: Watertown, SD
Country: United States Flag of United States
IATA Code: ATY
ICAO Code: KATY
Coordinates: 44°54′50″N, 97°9′16″W

Seattle to Watertown flight path

Shortest flight path between Boeing Field (BFI) and Watertown Regional Airport (ATY).

Frequent Flyer Miles Calculator

Seattle (BFI) → Watertown (ATY).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1214
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1214

Round trip?