How far is Chicago, IL, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Chicago (Chicago O'Hare International Airport) is 874 miles / 1406 kilometers / 759 nautical miles.
The driving distance from Portsmouth (PSM) to Chicago (ORD) is 1061 miles / 1708 kilometers, and travel time by car is about 20 hours 13 minutes.
Portsmouth International Airport at Pease – Chicago O'Hare International Airport
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Distance from Portsmouth to Chicago
There are several ways to calculate the distance from Portsmouth to Chicago. Here are two standard methods:
Vincenty's formula (applied above)- 873.835 miles
- 1406.301 kilometers
- 759.342 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- 871.546 miles
- 1402.618 kilometers
- 757.353 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 Portsmouth to Chicago?
The estimated flight time from Portsmouth International Airport at Pease to Chicago O'Hare International Airport is 2 hours and 9 minutes.
What is the time difference between Portsmouth and Chicago?
The time difference between Portsmouth and Chicago is 1 hour. Chicago is 1 hour behind Portsmouth.
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Chicago O'Hare International Airport (ORD)
On average, flying from Portsmouth to Chicago generates about 141 kg of CO2 per passenger, and 141 kilograms equals 312 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Portsmouth to Chicago
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Chicago O'Hare International Airport (ORD).
Airport information
| Origin | Portsmouth International Airport at Pease |
|---|---|
| City: | Portsmouth, NH |
| Country: | United States  |
| IATA Code: | PSM |
| ICAO Code: | KPSM |
| Coordinates: | 43°4′40″N, 70°49′23″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 |