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How far is Seattle, WA, from Chicago, IL?

The distance between Chicago (Chicago Midway International Airport) and Seattle (Seattle–Tacoma International Airport) is 1733 miles / 2789 kilometers / 1506 nautical miles.

The driving distance from Chicago (MDW) to Seattle (SEA) is 2057 miles / 3310 kilometers, and travel time by car is about 36 hours 35 minutes.

Chicago Midway International Airport – Seattle–Tacoma International Airport

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1733
Miles
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2789
Kilometers
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1506
Nautical miles

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Distance from Chicago to Seattle

There are several ways to calculate the distance from Chicago to Seattle. Here are two standard 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 planet.

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 – the shortest distance between two points).

How long does it take to fly from Chicago to Seattle?

The estimated flight time from Chicago Midway International Airport to Seattle–Tacoma International Airport is 3 hours and 46 minutes.

Flight carbon footprint between Chicago Midway International Airport (MDW) and Seattle–Tacoma International Airport (SEA)

On average, flying from Chicago to Seattle generates about 195 kg of CO2 per passenger, and 195 kilograms equals 430 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Chicago to Seattle

See the map of the shortest flight path between Chicago Midway International Airport (MDW) and Seattle–Tacoma International Airport (SEA).

Airport information

Origin 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
Destination 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

Airlines flying from Chicago (MDW) to Seattle (SEA)

AirTran Airways
Southwest Airlines