How far is Portsmouth from St Louis?
There are several ways to calculate distances between St Louis and Portsmouth. Here are two common methods:Vincenty's formula (applied above)
- 1063.122 miles
- 1710.929 kilometers
- 923.828 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 1060.732 miles
- 1707.083 kilometers
- 921.751 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).
Estimated flight time from St. Louis Lambert International Airport (STL) to Portsmouth International Airport at Pease (PSM) is 2 hours 30 minutes.
Time difference and current local times
The time difference between St Louis and Portsmouth is 1 hour. Portsmouth is 1 hour ahead of St Louis.
St Louis, MO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 155 kg (341 pounds).
|A||St. Louis Lambert International Airport|
|City:||St Louis, MO|
|B||Portsmouth International Airport at Pease|
St Louis to Portsmouth flight map.
Frequent Flyer Miles Calculator
St Louis (STL) → Portsmouth (PSM).