Air Miles Calculator logo

How far is Portsmouth, NH, from Chicago, IL?

The distance between Chicago (Chicago Midway International Airport) and Portsmouth (Portsmouth International Airport at Pease) is 869 miles / 1398 kilometers / 755 nautical miles.

The driving distance from Chicago (MDW) to Portsmouth (PSM) is 1048 miles / 1686 kilometers, and travel time by car is about 19 hours 56 minutes.

Chicago Midway International Airport – Portsmouth International Airport at Pease

Distance arrow
869
Miles
Distance arrow
1398
Kilometers
Distance arrow
755
Nautical miles

Search flights

Distance from Chicago to Portsmouth

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

Vincenty's formula (applied above)
  • 868.694 miles
  • 1398.028 kilometers
  • 754.875 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
  • 866.434 miles
  • 1394.390 kilometers
  • 752.910 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 Portsmouth?

The estimated flight time from Chicago Midway International Airport to Portsmouth International Airport at Pease is 2 hours and 8 minutes.

Flight carbon footprint between Chicago Midway International Airport (MDW) and Portsmouth International Airport at Pease (PSM)

On average, flying from Chicago to Portsmouth generates about 141 kg of CO2 per passenger, and 141 kilograms equals 311 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 Portsmouth

See the map of the shortest flight path between Chicago Midway International Airport (MDW) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin Chicago Midway International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″W
Destination Portsmouth International Airport at Pease
City: Portsmouth, NH
Country: United States Flag of United States
IATA Code: PSM
ICAO Code: KPSM
Coordinates: 43°4′40″N, 70°49′23″W