How far is Chicago, IL, from Portland, ME?

The distance between Portland (Portland International Jetport) and Chicago (Chicago Midway International Airport) is 895 miles / 1441 kilometers / 778 nautical miles.

The driving distance from Portland (PWM) to Chicago (MDW) is 1087 miles / 1749 kilometers, and travel time by car is about 20 hours 34 minutes.

Distance from Portland to Chicago

There are several ways to calculate the distance from Portland to Chicago. Here are two standard methods:

Vincenty's formula (applied above)

• 895.382 miles
• 1440.977 kilometers
• 778.066 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

• 893.070 miles
• 1437.256 kilometers
• 776.056 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 Portland to Chicago?

The estimated flight time from Portland International Jetport to Chicago Midway International Airport is 2 hours and 11 minutes.

What is the time difference between Portland and Chicago?

The time difference between Portland and Chicago is 1 hour. Chicago is 1 hour behind Portland.

Flight carbon footprint between Portland International Jetport (PWM) and Chicago Midway International Airport (MDW)

On average, flying from Portland to Chicago generates about 143 kg of CO2 per passenger, and 143 kilograms equals 316 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Portland to Chicago

See the map of the shortest flight path between Portland International Jetport (PWM) and Chicago Midway International Airport (MDW).

Airport information

Origin	Portland International Jetport
City:	Portland, ME
Country:	United States
IATA Code:	PWM
ICAO Code:	KPWM
Coordinates:	43°38′46″N, 70°18′33″W

Destination	Chicago Midway International Airport
City:	Chicago, IL
Country:	United States
IATA Code:	MDW
ICAO Code:	KMDW
Coordinates:	41°47′9″N, 87°45′8″W