Air Miles Calculator

Distance between Seattle, WA (BFI) and Twin Falls, ID (TWF)

Distance from Seattle to Twin Falls (Seattle Boeing Field – Magic Valley Regional Airport) is 517 miles / 832 kilometers / 449 nautical miles.

How far is Twin Falls from Seattle?

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

Vincenty's formula (applied above)
  • 517.260 miles
  • 832.450 kilometers
  • 449.487 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
  • 516.607 miles
  • 831.399 kilometers
  • 448.920 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 Seattle Boeing Field (BFI) to Magic Valley Regional Airport (TWF) is 1 hour 28 minutes.

Time difference and current local times

The time difference between Seattle and Twin Falls is 1 hour. Twin Falls is 1 hour ahead of Seattle.

Time Difference

Seattle
Twin Falls

Seattle, WA

 PDT

Twin Falls, ID

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 102 kg (224 pounds).

Airport information


A 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

B Magic Valley Regional Airport
City: Twin Falls, ID
Country: United States Flag of United States
IATA Code: TWF
ICAO Code: KTWF
Coordinates: 42°28′54″N, 114°29′16″W

Seattle to Twin Falls flight path

Shortest flight path between Seattle Boeing Field (BFI) and Magic Valley Regional Airport (TWF).

Frequent Flyer Miles Calculator

Seattle (BFI) → Twin Falls (TWF).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
517
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
517

Round trip?