How far is Seattle, WA, from Chicago, IL?
The distance between Chicago (Chicago O'Hare International Airport) and Seattle (Seattle Boeing Field) is 1720 miles / 2768 kilometers / 1495 nautical miles.
The driving distance from Chicago (ORD) to Seattle (BFI) is 2036 miles / 3277 kilometers, and travel time by car is about 36 hours 5 minutes.
Chicago O'Hare International Airport – Seattle Boeing Field
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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)- 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 planet.
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).
How long does it take to fly from Chicago to Seattle?
The estimated flight time from Chicago O'Hare International Airport to Seattle Boeing Field is 3 hours and 45 minutes.
What is the time difference between Chicago and Seattle?
The time difference between Chicago and Seattle is 2 hours. Seattle is 2 hours behind Chicago.
Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Seattle Boeing Field (BFI)
On average, flying from Chicago to Seattle generates about 194 kg of CO2 per passenger, and 194 kilograms equals 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 Chicago to Seattle
See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Seattle Boeing Field (BFI).
Airport information
| Origin | 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 |
| Destination | Seattle Boeing Field |
|---|---|
| City: | Seattle, WA |
| Country: | United States |
| IATA Code: | BFI |
| ICAO Code: | KBFI |
| Coordinates: | 47°31′47″N, 122°18′7″W |