Air Miles Calculator

Distance between St Louis, MO (STL) and Williamsport, PA (IPT)

Flight distance from St Louis to Williamsport (St. Louis Lambert International Airport – Williamsport Regional Airport) is 733 miles / 1180 kilometers / 637 nautical miles. Estimated flight time is 1 hour 53 minutes.

Driving distance from St Louis (STL) to Williamsport (IPT) is 817 miles / 1315 kilometers and travel time by car is about 14 hours 17 minutes.

Map of flight path and driving directions from St Louis to Williamsport.

Shortest flight path between St. Louis Lambert International Airport (STL) and Williamsport Regional Airport (IPT).

How far is Williamsport from St Louis?

There are several ways to calculate distances between St Louis and Williamsport. Here are two common methods:

Vincenty's formula (applied above)
  • 733.271 miles
  • 1180.086 kilometers
  • 637.195 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
  • 731.598 miles
  • 1177.393 kilometers
  • 635.741 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).

Airport information


A St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

B Williamsport Regional Airport
City: Williamsport, PA
Country: United States Flag of United States
IATA Code: IPT
ICAO Code: KIPT
Coordinates: 41°14′30″N, 76°55′15″W

Time difference and current local times

The time difference between St Louis and Williamsport is 1 hour. Williamsport is 1 hour ahead of St Louis.

Time Difference

St Louis, MO

 CST

Williamsport, PA

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 128 kg (283 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Williamsport (IPT).

Distance:
733
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
733

Round trip?