Air Miles Calculator

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

Distance from Seattle–Tacoma International Airport to Midway International Airport is 1733 miles / 2789 kilometers / 1506 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 1733.255 miles
  • 2789.403 kilometers
  • 1506.157 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
  • 1728.763 miles
  • 2782.174 kilometers
  • 1502.254 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from Seattle–Tacoma International Airport (SEA) to Midway International Airport (MDW) is 3 hours 46 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

 PST

Chicago, IL

 CST

Airport information


A Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W

B 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

Map

Flight map from Seattle to Chicago.

Frequent Flyer Miles Calculator

Seattle (SEA) → Chicago (MDW).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1733
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1733

Round trip?