Air Miles Calculator

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

Distance from Seattle to Chicago (Seattle Boeing Field – Chicago O'Hare International Airport) is 1720 miles / 2768 kilometers / 1495 nautical miles.

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)
  • 1720.232 miles
  • 2768.445 kilometers
  • 1494.841 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
  • 1715.751 miles
  • 2761.234 kilometers
  • 1490.947 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 Chicago O'Hare International Airport (ORD) is 3 hours 45 minutes.

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
Chicago

Seattle, WA

 PDT

Chicago, IL

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 189 kg (416 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 Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

Seattle to Chicago flight path

Shortest flight path between Seattle Boeing Field (BFI) and Chicago O'Hare International Airport (ORD).

Frequent Flyer Miles Calculator

Seattle (BFI) → Chicago (ORD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1720
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1720

Round trip?