Distance between Seattle, WA (SEA) and Chicago, IL (ORD)
Flight distance from Seattle to Chicago (Seattle–Tacoma International Airport – Chicago O'Hare International Airport) is 1721 miles / 2769 kilometers / 1495 nautical miles. Estimated flight time is 3 hours 45 minutes.
Driving distance from Seattle (SEA) to Chicago (ORD) is 2090 miles / 3364 kilometers and travel time by car is about 36 hours 4 minutes.
Seattle – Chicago
How far is Chicago from Seattle?
There are several ways to calculate distances between Los Angeles and Chicago. Here are two common methods:
Vincenty's formula (applied above)- 1720.561 miles
- 2768.975 kilometers
- 1495.127 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- 1716.075 miles
- 2761.755 kilometers
- 1491.229 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–Tacoma International Airport to Chicago O'Hare International Airport is 3 hours 45 minutes.
Time difference
The time difference between Seattle and Chicago is 2 hours. Chicago is 2 hours ahead of Seattle.
Seattle time to Chicago time converter
Carbon dioxide emissions
On average flying from Seattle to Chicago generates about 194 kg of CO2 per passenger, 194 kilograms is equal to 428 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Seattle to Chicago
Shortest flight path between Seattle–Tacoma International Airport (SEA) and Chicago O'Hare International Airport (ORD).
Airport information
| Origin | Seattle–Tacoma International Airport |
|---|---|
| City: | Seattle, WA |
| Country: | United States  |
| IATA Code: | SEA |
| ICAO Code: | KSEA |
| Coordinates: | 47°26′56″N, 122°18′32″W |
| Destination | Chicago O'Hare International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | United States |
| IATA Code: | ORD |
| ICAO Code: | KORD |
| Coordinates: | 41°58′42″N, 87°54′17″W |
Airlines flying from Seattle (SEA) to Chicago (ORD)
| Alaska Airlines |
| American Airlines |
| United Airlines |