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

The distance between Seattle (Seattle–Tacoma International Airport) and Chicago (Chicago O'Hare International Airport) is 1721 miles / 2769 kilometers / 1495 nautical miles.

The driving distance from Seattle (SEA) to Chicago (ORD) is 2036 miles / 3276 kilometers, and travel time by car is about 35 hours 59 minutes.

1721
Miles
2769
Kilometers
1495
Nautical miles
3 h 45 min
194 kg

## Distance from Seattle to Chicago

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

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).

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

The estimated flight time from Seattle–Tacoma International Airport to Chicago O'Hare International Airport is 3 hours and 45 minutes.

## Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Chicago O'Hare International Airport (ORD)

On average, flying from Seattle to Chicago 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 Seattle to Chicago

See the map of the 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