Air Miles Calculator

Distance between Seattle, WA (BFI) and Springfield, IL (SPI)

Distance from Seattle to Springfield (Boeing Field – Abraham Lincoln Capital Airport) is 1704 miles / 2742 kilometers / 1481 nautical miles.

How far is Springfield from Seattle?

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

Vincenty's formula (applied above)
  • 1703.853 miles
  • 2742.085 kilometers
  • 1480.608 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
  • 1699.818 miles
  • 2735.591 kilometers
  • 1477.101 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 Abraham Lincoln Capital Airport (SPI) is 3 hours 43 minutes.

Time difference and current local times

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

Time Difference

Seattle
Springfield

Seattle, WA

 PDT

Springfield, IL

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 187 kg (412 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 Abraham Lincoln Capital Airport
City: Springfield, IL
Country: United States Flag of United States
IATA Code: SPI
ICAO Code: KSPI
Coordinates: 39°50′38″N, 89°40′40″W

Seattle to Springfield flight path

Shortest flight path between Boeing Field (BFI) and Abraham Lincoln Capital Airport (SPI).

Frequent Flyer Miles Calculator

Seattle (BFI) → Springfield (SPI).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1704
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1704

Round trip?