Air Miles Calculator

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

Flight distance from Seattle to Chicago (Seattle Boeing Field – Chicago O'Hare International Airport) is 1720 miles / 2768 kilometers / 1495 nautical miles. Estimated flight time is 3 hours 45 minutes.

Driving distance from Seattle (BFI) to Chicago (ORD) is 2088 miles / 3361 kilometers and travel time by car is about 33 hours 52 minutes.

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

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

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).

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

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 194 kg (428 pounds).

Frequent Flyer Miles Calculator

Seattle (BFI) → Chicago (ORD).

Distance:
1720
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1720

Round trip?