Air Miles Calculator

Distance between Seattle, WA (BFI) and Chicago, IL (MDW)

Flight distance from Seattle to Chicago (Seattle Boeing Field – Chicago Midway International Airport) is 1733 miles / 2789 kilometers / 1506 nautical miles. Estimated flight time is 3 hours 46 minutes.

Driving distance from Seattle (BFI) to Chicago (MDW) is 2107 miles / 3391 kilometers and travel time by car is about 34 hours 15 minutes.

Map of flight path and driving directions from Seattle to Chicago.

Shortest flight path between Seattle Boeing Field (BFI) and Chicago Midway International Airport (MDW).

How far is Chicago from Seattle?

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

Vincenty's formula (applied above)
  • 1732.955 miles
  • 2788.921 kilometers
  • 1505.897 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
  • 1728.468 miles
  • 2781.700 kilometers
  • 1501.998 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 Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W

B Chicago Midway International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″W

Time difference and current local times

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

Time Difference

Seattle, WA

 PST

Chicago, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 195 kg (430 pounds).

Frequent Flyer Miles Calculator

Seattle (BFI) → Chicago (MDW).

Distance:
1733
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1733

Round trip?