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

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

The driving distance from Chicago (ORD) to Seattle (SEA) is 2039 miles / 3281 kilometers, and travel time by car is about 36 hours 8 minutes.

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

## 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)
• 1720.561 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 Chicago to Seattle?

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

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

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–Tacoma International Airport (SEA).

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