How far is Pasco, WA, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Pasco (Tri-Cities Airport (Washington)) is 341 miles / 550 kilometers / 297 nautical miles.
The driving distance from Helena (HLN) to Pasco (PSC) is 448 miles / 721 kilometers, and travel time by car is about 8 hours 3 minutes.
Helena Regional Airport – Tri-Cities Airport (Washington)
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Distance from Helena to Pasco
There are several ways to calculate the distance from Helena to Pasco. Here are two standard methods:
Vincenty's formula (applied above)- 341.475 miles
- 549.550 kilometers
- 296.733 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- 340.498 miles
- 547.979 kilometers
- 295.885 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 Helena to Pasco?
The estimated flight time from Helena Regional Airport to Tri-Cities Airport (Washington) is 1 hour and 8 minutes.
What is the time difference between Helena and Pasco?
The time difference between Helena and Pasco is 1 hour. Pasco is 1 hour behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Tri-Cities Airport (Washington) (PSC)
On average, flying from Helena to Pasco generates about 75 kg of CO2 per passenger, and 75 kilograms equals 166 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Helena to Pasco
See the map of the shortest flight path between Helena Regional Airport (HLN) and Tri-Cities Airport (Washington) (PSC).
Airport information
| Origin | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |
| Destination | Tri-Cities Airport (Washington) |
|---|---|
| City: | Pasco, WA |
| Country: | United States |
| IATA Code: | PSC |
| ICAO Code: | KPSC |
| Coordinates: | 46°15′52″N, 119°7′8″W |